{
  "seriesCount": 56,
  "categories": [
    {
      "slug": "oil-immersed-transformers",
      "title": "Oil-Immersed Transformers"
    },
    {
      "slug": "dry-type-transformers",
      "title": "Dry-Type Transformers"
    },
    {
      "slug": "renewable-energy-transformers",
      "title": "Solar & Energy Storage Transformers"
    },
    {
      "slug": "industrial-transformers",
      "title": "Industrial Transformers"
    },
    {
      "slug": "voltage-regulators",
      "title": "Voltage Stabilizers"
    }
  ],
  "products": [
    {
      "id": 0,
      "title": "DK Export-Type Control Transformers",
      "family": "Industrial Control Transformers",
      "description": "Single-phase control transformers for machine control, lighting and signalling.",
      "sections": [
        {
          "heading": "Overview",
          "paragraphs": [
            "Developed from domestic and international BK control-transformer designs, incorporating features of comparable overseas products. The manufacturer describes its own terminal design and an advanced connection arrangement, with a neat appearance, good performance, reliable operation, low energy consumption, compact size, safe wiring and broad applicability as a voltage-conversion power supply."
          ]
        },
        {
          "heading": "Applications",
          "paragraphs": [
            "For AC circuits at 50/60 Hz with a rated supply voltage not exceeding 1000 V. Applications include machine-tool and mechanical-equipment control circuits, task lighting, signalling and small auxiliary power supplies."
          ]
        },
        {
          "heading": "Model designation",
          "paragraphs": [
            "D: single-phase transformer; K: control; the suffix indicates rated capacity."
          ]
        }
      ],
      "specifications": [],
      "models": [],
      "tables": [
        {
          "caption": "Overall and mounting dimensions",
          "columns": [
            "Model",
            "Bmax",
            "Dmax",
            "Emax",
            "A ±0.4",
            "C ±1.5",
            "Mounting hole K",
            "Mounting hole J"
          ],
          "rows": [
            [
              "DK-25VA",
              "78",
              "84",
              "90",
              "57",
              "57",
              "5",
              "9"
            ],
            [
              "DK-50VA",
              "78",
              "94",
              "90",
              "57",
              "67",
              "5",
              "9"
            ],
            [
              "DK-100VA",
              "112",
              "94",
              "115",
              "76",
              "70",
              "6",
              "10"
            ],
            [
              "DK-150VA",
              "112",
              "102",
              "115",
              "76",
              "78",
              "6",
              "10"
            ],
            [
              "DK-200VA",
              "112",
              "110",
              "115",
              "76",
              "85",
              "6",
              "10"
            ],
            [
              "DK-250VA",
              "112",
              "115",
              "115",
              "76",
              "90",
              "6",
              "10"
            ],
            [
              "DK-300VA",
              "112",
              "120",
              "115",
              "76",
              "95",
              "6",
              "11"
            ],
            [
              "DK-400VA",
              "140",
              "127",
              "140",
              "98",
              "102",
              "6",
              "11"
            ],
            [
              "DK-500VA",
              "140",
              "132",
              "140",
              "98",
              "107",
              "6",
              "11"
            ],
            [
              "DK-700VA",
              "140",
              "137",
              "140",
              "98",
              "112",
              "6",
              "11"
            ],
            [
              "DK-1000VA",
              "170",
              "170",
              "165",
              "116",
              "118",
              "8.5",
              "15"
            ],
            [
              "DK-1500VA",
              "170",
              "180",
              "165",
              "116",
              "128",
              "8.5",
              "15"
            ],
            [
              "DK-2000VA",
              "200",
              "185",
              "200",
              "145",
              "135",
              "9",
              "18"
            ],
            [
              "DK-2500VA",
              "200",
              "195",
              "200",
              "145",
              "145",
              "9",
              "18"
            ],
            [
              "DK-3000VA",
              "200",
              "205",
              "200",
              "145",
              "155",
              "9",
              "18"
            ]
          ]
        }
      ],
      "notes": [],
      "slug": "dk-control-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/dk-control-transformers.webp",
      "href": "/products/series/dk-control-transformers",
      "pdfPage": 4,
      "side": "left",
      "sheet": "/catalog/sheets/04-left.webp",
      "sheetWidth": 1006,
      "sheetHeight": 1375
    },
    {
      "id": 1,
      "title": "BK Standard-Type Control Transformers",
      "family": "Industrial Control Transformers",
      "description": "Single-phase standard control transformers for machinery and auxiliary supplies.",
      "sections": [
        {
          "heading": "Overview",
          "paragraphs": [
            "Developed from domestic and international BK control transformers and the advantages of comparable overseas products. The manufacturer describes independently developed terminals using advanced connection methods, a neat appearance, good performance, reliable operation, low energy consumption, compact dimensions, safe wiring and broad suitability. The brochure states that this BK design obtained a Chinese national patent; no patent number is provided on this product page."
          ]
        },
        {
          "heading": "Applications",
          "paragraphs": [
            "For AC circuits at 50/60 Hz with a rated supply voltage not exceeding 1000 V. Applications include machine-tool and mechanical-equipment control circuits, task lighting, signalling and small auxiliary power supplies."
          ]
        },
        {
          "heading": "Model designation",
          "paragraphs": [
            "B: transformer; K: control; 1: design sequence; suffix: rated capacity in VA."
          ]
        }
      ],
      "specifications": [],
      "models": [],
      "tables": [
        {
          "caption": "Overall and mounting dimensions",
          "columns": [
            "Model",
            "Bmax",
            "Dmax",
            "Emax",
            "A ±0.4",
            "C ±1.5",
            "Mounting hole K",
            "Mounting hole J"
          ],
          "rows": [
            [
              "BK-50VA",
              "77",
              "75",
              "75",
              "56",
              "57",
              "5",
              "9"
            ],
            [
              "BK-100VA",
              "86",
              "85",
              "85",
              "64",
              "67",
              "6",
              "10"
            ],
            [
              "BK-160VA",
              "96",
              "89",
              "95",
              "84",
              "70",
              "6",
              "10"
            ],
            [
              "BK-200VA",
              "96",
              "104",
              "95",
              "84",
              "85",
              "6",
              "10"
            ],
            [
              "BK-250VA",
              "96",
              "104",
              "95",
              "84",
              "85",
              "6",
              "10"
            ],
            [
              "BK-300VA",
              "120",
              "100",
              "115",
              "90",
              "82",
              "7",
              "12"
            ],
            [
              "BK-400VA",
              "120",
              "105",
              "115",
              "90",
              "87",
              "7",
              "12"
            ],
            [
              "BK-500VA",
              "120",
              "117",
              "115",
              "90",
              "99",
              "7",
              "12"
            ],
            [
              "BK-630VA",
              "150",
              "114",
              "140",
              "122",
              "91",
              "8",
              "16"
            ],
            [
              "BK-1000VA",
              "150",
              "134",
              "140",
              "122",
              "111",
              "8",
              "16"
            ],
            [
              "BK-1500VA",
              "162",
              "135",
              "155",
              "119",
              "116",
              "",
              ""
            ],
            [
              "BK-2000VA",
              "192",
              "130",
              "185",
              "160",
              "100",
              "9",
              "22"
            ],
            [
              "BK-2500VA",
              "192",
              "140",
              "185",
              "160",
              "110",
              "9",
              "22"
            ],
            [
              "BK-3000VA",
              "192",
              "150",
              "185",
              "160",
              "120",
              "9",
              "22"
            ]
          ]
        }
      ],
      "notes": [
        "The BK-1500VA mounting-hole K and J cells are blank in the brochure."
      ],
      "slug": "bk-control-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/bk-control-transformers.webp",
      "href": "/products/series/bk-control-transformers",
      "pdfPage": 4,
      "side": "right",
      "sheet": "/catalog/sheets/04-right.webp",
      "sheetWidth": 1007,
      "sheetHeight": 1375
    },
    {
      "id": 2,
      "title": "JBK3 Machine-Tool Control Transformers",
      "family": "Machine Tool Control Transformers",
      "description": "50/60 Hz single-phase transformers for machinery control and lighting.",
      "sections": [
        {
          "heading": "Application scope",
          "paragraphs": [
            "The brochure describes this series as a design developed with reference to a German Siemens sample and states conformity with VDE0550, IEC204-1, IEC439 and GB5226. These are brochure statements, not independently verified certification claims.",
            "Suitable for AC 50/60 Hz, rated input voltage not exceeding 1000 V and output voltage not exceeding 1000 V. Used for control circuits, task lighting and signal lamps in mechanical equipment and general electrical apparatus across industries."
          ]
        },
        {
          "heading": "Model designation",
          "paragraphs": [
            "JB: machine-tool transformer; K: control; 3: design sequence; suffix: rated capacity."
          ]
        },
        {
          "heading": "Dimension drawings",
          "paragraphs": [
            "The brochure labels its drawing groups JBK3-40–630 and JBK3-1000–2500."
          ]
        }
      ],
      "specifications": [],
      "models": [],
      "tables": [
        {
          "caption": "Overall and mounting dimensions; upright and horizontal variants retained separately",
          "columns": [
            "Model",
            "Bmax",
            "Dmax",
            "Emax",
            "Mounting A",
            "Mounting C",
            "Mounting hole K or K×J",
            "Fmax",
            "Arrangement"
          ],
          "rows": [
            [
              "JBK3-63",
              "78",
              "85",
              "83",
              "55±0.4",
              "56±2",
              "4.8×9",
              "12",
              ""
            ],
            [
              "JBK3-100",
              "86",
              "90",
              "95",
              "64±0.4",
              "67±2",
              "4.8×9",
              "12",
              ""
            ],
            [
              "JBK3-160",
              "96",
              "95",
              "105",
              "84±0.4",
              "70±2",
              "5.8×11",
              "14",
              ""
            ],
            [
              "JBK3-250",
              "96",
              "115",
              "105",
              "84±0.4",
              "85±2",
              "5.8×11",
              "14",
              ""
            ],
            [
              "JBK3-300",
              "120",
              "115",
              "120",
              "90±0.4",
              "80±2",
              "7×12",
              "",
              ""
            ],
            [
              "JBK3-400",
              "120",
              "120",
              "120",
              "90±0.4",
              "85±2",
              "7×12",
              "18",
              ""
            ],
            [
              "JBK3-500",
              "120",
              "125",
              "120",
              "90±0.4",
              "97±2",
              "7×12",
              "",
              ""
            ],
            [
              "JBK3-630",
              "150",
              "120",
              "145",
              "122±0.4",
              "86±2",
              "7×12",
              "22",
              ""
            ],
            [
              "JBK3-1000",
              "150",
              "145",
              "145",
              "122±0.4",
              "107±2",
              "7×12",
              "18",
              "Upright"
            ],
            [
              "JBK3-1000",
              "160",
              "195",
              "150",
              "130±0.4",
              "148±2",
              "",
              "",
              "Horizontal"
            ],
            [
              "JBK3-1600",
              "184",
              "220",
              "163",
              "145±0.4",
              "170±2",
              "7×12",
              "18",
              ""
            ],
            [
              "JBK3-2500",
              "200",
              "250",
              "170",
              "170±0.4",
              "210±2",
              "7×12",
              "18",
              ""
            ]
          ]
        }
      ],
      "notes": [
        "Blank Fmax and hole cells are reproduced as printed; the two JBK3-1000 variants must not be combined."
      ],
      "slug": "jbk3-machine-tool-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/jbk3-machine-tool-transformers.webp",
      "href": "/products/series/jbk3-machine-tool-transformers",
      "pdfPage": 5,
      "side": "left",
      "sheet": "/catalog/sheets/05-left.webp",
      "sheetWidth": 1006,
      "sheetHeight": 1375
    },
    {
      "id": 3,
      "title": "JBK5 Machine-Tool Control Transformers",
      "family": "Machine Tool Control Transformers",
      "description": "Integrated-terminal control transformers for machinery and auxiliary lighting.",
      "sections": [
        {
          "heading": "Construction and development",
          "paragraphs": [
            "The series is described as based on German transformer designs introduced in the mid-1990s and developed further from JBK3 with features of comparable overseas products. Terminal blocks are integrated with the bobbin to reduce accidental contact; the brochure prints the protection designation IP2LX. Cold-pressed connection terminals permit more compact wiring.",
            "Argon-arc welding joins the silicon-steel laminations to one another and to the base plate as an integrated assembly. The base is formed in one operation for more accurate mounting dimensions than JBK3. Corrosion-resistant alloy materials are used to improve the reliability of the earthing connection.",
            "The brochure states conformity with VDE0550, IEC204-1, EC439, JB5555 and GB5226 and describes interchangeability with overseas products. These references are retained as printed and are not independently verified certification claims."
          ]
        },
        {
          "heading": "Applications",
          "paragraphs": [
            "For AC 50/60 Hz, input voltage not exceeding 500 V and rated output voltage not exceeding 220 V. Supplies control circuits, task lighting and signal lamps for mechanical equipment and general electrical apparatus."
          ]
        },
        {
          "heading": "Model designation",
          "paragraphs": [
            "JB: machine-tool transformer; K: control; 5 or 6: design sequence; suffix: rated capacity; tropical-service code TH: humid tropical, TA: dry tropical."
          ]
        }
      ],
      "specifications": [],
      "models": [],
      "tables": [
        {
          "caption": "Overall and mounting dimensions; separate installation variants",
          "columns": [
            "Model",
            "Bmax",
            "Dmax",
            "Emax",
            "Mounting A",
            "Mounting C",
            "Mounting hole K or K×J",
            "Fmax",
            "Arrangement"
          ],
          "rows": [
            [
              "JBK5-63",
              "78",
              "59",
              "85",
              "57±0.15",
              "46±0.125",
              "4.6",
              "1.5",
              ""
            ],
            [
              "JBK5-100",
              "86",
              "86",
              "95",
              "64±0.15",
              "62±0.15",
              "4.6",
              "1.5",
              ""
            ],
            [
              "JBK5-160",
              "96",
              "90",
              "105",
              "83±0.175",
              "73±0.5",
              "5.5",
              "1.5",
              ""
            ],
            [
              "JBK5-250",
              "96",
              "100",
              "105",
              "80±0.175",
              "85±0.175",
              "5.8",
              "1.5",
              ""
            ],
            [
              "JBK5-400",
              "120",
              "102",
              "125",
              "90±0.175",
              "84±0.175",
              "5.8",
              "2",
              ""
            ],
            [
              "JBK5-630",
              "150",
              "111",
              "150",
              "122±0.2",
              "90±0.175",
              "7",
              "2",
              ""
            ],
            [
              "JBK5-800",
              "150",
              "120",
              "150",
              "122±0.2",
              "105±0.2",
              "7",
              "2",
              ""
            ],
            [
              "JBK5-1000",
              "150",
              "120",
              "145",
              "122±0.2",
              "105±0.2",
              "7",
              "",
              "Upright"
            ],
            [
              "JBK5-1000",
              "160",
              "195",
              "150",
              "130±0.2",
              "148±0.2",
              "7",
              "",
              "Horizontal"
            ],
            [
              "JBK5-1600",
              "184",
              "220",
              "163",
              "145±0.2",
              "170±0.2",
              "7",
              "",
              "Horizontal"
            ],
            [
              "JBK5-2500",
              "200",
              "250",
              "170",
              "170±0.2",
              "210±0.2",
              "7",
              "",
              "Horizontal"
            ]
          ]
        }
      ],
      "notes": [
        "The protection notation IP2LX and standard reference EC439 are retained exactly as printed; confirm the specified enclosure class and applicable standard edition when ordering.",
        "Blank Fmax cells are blank in the source table."
      ],
      "slug": "jbk5-machine-tool-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/jbk5-machine-tool-transformers.webp",
      "href": "/products/series/jbk5-machine-tool-transformers",
      "pdfPage": 5,
      "side": "right",
      "sheet": "/catalog/sheets/05-right.webp",
      "sheetWidth": 1007,
      "sheetHeight": 1375
    },
    {
      "id": 4,
      "title": "JBK6 Machine-Tool Control Transformers",
      "family": "Machine Tool Control Transformers",
      "description": "Integrated-terminal control transformers for machinery and auxiliary lighting.",
      "sections": [
        {
          "heading": "Overview",
          "paragraphs": [
            "JBK6 is described as an upgraded JBK5 design with Class H insulation."
          ]
        },
        {
          "heading": "Construction and development",
          "paragraphs": [
            "The series is described as based on German transformer designs introduced in the mid-1990s and developed further from JBK3 with features of comparable overseas products. Terminal blocks are integrated with the bobbin to reduce accidental contact; the brochure prints the protection designation IP2LX. Cold-pressed connection terminals permit more compact wiring.",
            "Argon-arc welding joins the silicon-steel laminations to one another and to the base plate as an integrated assembly. The base is formed in one operation for more accurate mounting dimensions than JBK3. Corrosion-resistant alloy materials are used to improve the reliability of the earthing connection.",
            "The brochure states conformity with VDE0550, IEC204-1, EC439, JB5555 and GB5226 and describes interchangeability with overseas products. These references are retained as printed and are not independently verified certification claims."
          ]
        },
        {
          "heading": "Applications",
          "paragraphs": [
            "For AC 50/60 Hz, input voltage not exceeding 500 V and rated output voltage not exceeding 220 V. Supplies control circuits, task lighting and signal lamps for mechanical equipment and general electrical apparatus."
          ]
        },
        {
          "heading": "Model designation",
          "paragraphs": [
            "JB: machine-tool transformer; K: control; 5 or 6: design sequence; suffix: rated capacity; tropical-service code TH: humid tropical, TA: dry tropical."
          ]
        }
      ],
      "specifications": [],
      "models": [],
      "tables": [
        {
          "caption": "Overall and mounting dimensions; separate installation variants",
          "columns": [
            "Model",
            "Bmax",
            "Dmax",
            "Emax",
            "Mounting A",
            "Mounting C",
            "Mounting hole K or K×J",
            "Fmax",
            "Arrangement"
          ],
          "rows": [
            [
              "JBK6-63",
              "78",
              "59",
              "85",
              "57±0.15",
              "46±0.125",
              "4.6",
              "1.5",
              ""
            ],
            [
              "JBK6-100",
              "86",
              "86",
              "95",
              "64±0.15",
              "62±0.15",
              "4.6",
              "1.5",
              ""
            ],
            [
              "JBK6-160",
              "96",
              "90",
              "105",
              "83±0.175",
              "73±0.5",
              "5.5",
              "1.5",
              ""
            ],
            [
              "JBK6-250",
              "96",
              "100",
              "105",
              "80±0.175",
              "85±0.175",
              "5.8",
              "1.5",
              ""
            ],
            [
              "JBK6-400",
              "120",
              "102",
              "125",
              "90±0.175",
              "84±0.175",
              "5.8",
              "2",
              ""
            ],
            [
              "JBK6-630",
              "150",
              "111",
              "150",
              "122±0.2",
              "90±0.175",
              "7",
              "2",
              ""
            ],
            [
              "JBK6-800",
              "150",
              "120",
              "150",
              "122±0.2",
              "105±0.2",
              "7",
              "2",
              ""
            ],
            [
              "JBK6-1000",
              "150",
              "120",
              "145",
              "122±0.2",
              "105±0.2",
              "7",
              "",
              "Upright"
            ],
            [
              "JBK6-1000",
              "160",
              "195",
              "150",
              "130±0.2",
              "148±0.2",
              "7",
              "",
              "Horizontal"
            ],
            [
              "JBK6-1600",
              "184",
              "220",
              "163",
              "145±0.2",
              "170±0.2",
              "7",
              "",
              "Horizontal"
            ],
            [
              "JBK6-2500",
              "200",
              "250",
              "170",
              "170±0.2",
              "210±0.2",
              "7",
              "",
              "Horizontal"
            ]
          ]
        }
      ],
      "notes": [
        "The protection notation IP2LX and standard reference EC439 are retained exactly as printed; confirm the specified enclosure class and applicable standard edition when ordering.",
        "Blank Fmax cells are blank in the source table.",
        "The JBK6 application paragraph refers to JBK5 in the original; its stated ratings are retained without correction."
      ],
      "slug": "jbk6-machine-tool-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/jbk6-machine-tool-transformers.webp",
      "href": "/products/series/jbk6-machine-tool-transformers",
      "pdfPage": 6,
      "side": "left",
      "sheet": "/catalog/sheets/06-left.webp",
      "sheetWidth": 1006,
      "sheetHeight": 1375
    },
    {
      "id": 5,
      "title": "EI Electronic Power Transformers",
      "family": "Electronic Power Transformers",
      "description": "Laminated EI-core power transformers with copper primary and secondary windings.",
      "sections": [
        {
          "heading": "Materials and manufacture",
          "paragraphs": [
            "Primary and secondary windings use copper wire. Imported flame-retardant bobbins are described in the brochure as meeting the EU RoHS directive. Silicon-steel laminations are inserted by machine for production efficiency.",
            "Transformers undergo two varnish-impregnation cycles and automatic oven curing for corrosion and moisture resistance and a neat appearance."
          ]
        },
        {
          "heading": "Capacity selection",
          "paragraphs": [
            "For a single secondary winding, the maximum capacity in the table may be selected. For two or more secondary windings, reduce the capacity appropriately.",
            "Table capacities use the factory’s conventional 0.5 mm EI laminations. With the same core and bobbin dimensions, capacity may be increased by approximately 10% using the alternative thinner laminations described. Example: a 35×18 core and bobbin with 0.5 mm EI laminations has a maximum capacity of 4.0 VA; changing to 0.35 mm EI laminations increases the stated maximum to 4.5 VA.",
            "The table lists commonly used bobbins only. Contact the supplier for additional bobbin sizes."
          ]
        }
      ],
      "specifications": [],
      "models": [],
      "tables": [
        {
          "caption": "Bobbins, cores and mounting dimensions",
          "columns": [
            "Power",
            "Bobbin",
            "Core size (mm)",
            "Overall B×D×E",
            "Mounting-hole spacing A (mm)",
            "Mounting screw d"
          ],
          "rows": [
            [
              "15VA",
              "19×25",
              "57×25",
              "85×50×55",
              "70",
              "M4"
            ],
            [
              "20VA",
              "19×30",
              "57×30",
              "85×55×55",
              "75",
              "M4"
            ],
            [
              "25VA",
              "22×28",
              "66×28",
              "95×55×60",
              "80",
              "M4"
            ],
            [
              "30VA",
              "22×32",
              "66×32",
              "95×60×60",
              "84",
              "M4"
            ],
            [
              "40VA",
              "25×32",
              "76.2×32",
              "105×60×65",
              "95",
              "M5"
            ],
            [
              "50VA",
              "25×35",
              "76.2×35",
              "105×65×65",
              "95",
              "M5"
            ],
            [
              "70VA",
              "25×42",
              "76.2×42",
              "105×73×65",
              "95",
              "M5"
            ],
            [
              "80VA",
              "28×40",
              "85.8×40",
              "110×75×75",
              "115",
              "M5"
            ],
            [
              "100VA",
              "28×50",
              "85.8×50",
              "110×85×75",
              "115",
              "M5"
            ]
          ]
        }
      ],
      "notes": [],
      "slug": "ei-electronic-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/ei-electronic-transformers.webp",
      "href": "/products/series/ei-electronic-transformers",
      "pdfPage": 6,
      "side": "right",
      "sheet": "/catalog/sheets/06-right.webp",
      "sheetWidth": 1007,
      "sheetHeight": 1375
    },
    {
      "id": 6,
      "title": "OD Toroidal Transformers",
      "family": "Toroidal Transformers",
      "description": "Toroidal power and isolation transformers for electronic equipment.",
      "sections": [
        {
          "heading": "Overview and applications",
          "paragraphs": [
            "Toroidal transformers are a major electronic-transformer type used in domestic appliances and equipment with demanding technical requirements, principally as power and isolation transformers. The brochure describes established overseas ranges used in computers, medical equipment, telecommunications, instrumentation and lighting.",
            "The brochure describes growth in Chinese production over the preceding decade, supplying domestic demand and exports. Listed domestic applications include audio equipment, automatic-control equipment and quartz-lamp lighting. Competitive cost/performance, output characteristics and interference resistance are highlighted."
          ]
        },
        {
          "heading": "Features",
          "paragraphs": [
            "The ungapped core has a stated stacking factor above 95%. The brochure prints a core “permeability” figure of 1.5–1.8 T versus 1.2–1.4 T for a laminated core; T is retained as printed. It states efficiency above 95% and no-load current approximately 10% of the laminated-core equivalent.",
            "Small size and low weight: the brochure states that weight may be reduced by half compared with a laminated transformer. Keeping core cross-section constant allows the proportions to be changed to meet dimensional requirements.",
            "Low magnetic interference: windings are uniformly distributed on an ungapped toroidal core, reducing leakage flux and electromagnetic radiation. The brochure describes use in sensitive electronic equipment, low-voltage high-current generators and medical equipment without additional shielding.",
            "Reduced vibration and noise are attributed to the absence of core air gaps."
          ]
        }
      ],
      "specifications": [],
      "models": [],
      "tables": [
        {
          "caption": "Core, outside dimensions, base and mounting dimensions",
          "columns": [
            "Core",
            "Capacity",
            "Outside A",
            "Outside D",
            "Base F",
            "Base J",
            "Mounting B",
            "Mounting C",
            "Hole d",
            "Base thickness G"
          ],
          "rows": [
            [
              "32/64-25",
              "25VA",
              "73",
              "35",
              "80",
              "80",
              "72",
              "72",
              "5",
              "1.2"
            ],
            [
              "40/80-25",
              "40VA",
              "90",
              "36",
              "110",
              "110",
              "100",
              "85",
              "5",
              "1.2"
            ],
            [
              "40/80-30",
              "50VA",
              "90",
              "42",
              "110",
              "110",
              "100",
              "85",
              "5",
              "1.2"
            ],
            [
              "40/80-30",
              "60VA",
              "90",
              "43",
              "110",
              "110",
              "100",
              "85",
              "5",
              "1.2"
            ],
            [
              "40/80-40",
              "80VA",
              "90",
              "55",
              "110",
              "110",
              "100",
              "85",
              "5",
              "1.2"
            ],
            [
              "45/95-30",
              "100VA",
              "105",
              "42",
              "110",
              "110",
              "100",
              "85",
              "5",
              "1.2"
            ],
            [
              "55/95-40",
              "120VA",
              "108",
              "55",
              "110",
              "110",
              "100",
              "85",
              "5",
              "1.2"
            ],
            [
              "55/95-40",
              "160VA",
              "110",
              "55",
              "110",
              "110",
              "100",
              "85",
              "5",
              "1.2"
            ],
            [
              "55/100-50",
              "200VA",
              "112",
              "65",
              "120",
              "120",
              "108",
              "108",
              "5×7",
              "1.2"
            ],
            [
              "55/100-50",
              "250VA",
              "115",
              "65",
              "120",
              "120",
              "108",
              "108",
              "5×7",
              "1.2"
            ],
            [
              "46/110-50",
              "300VA",
              "122",
              "65",
              "120",
              "120",
              "108",
              "108",
              "5×7",
              "1.2"
            ],
            [
              "46/110-50",
              "350VA",
              "125",
              "65",
              "120",
              "120",
              "108",
              "108",
              "5×7",
              "1.2"
            ],
            [
              "55/120-50",
              "400VA",
              "130",
              "68",
              "",
              "",
              "",
              "",
              "",
              ""
            ],
            [
              "55/120-50",
              "500VA",
              "133",
              "70",
              "",
              "",
              "",
              "",
              "",
              ""
            ],
            [
              "60/120-60",
              "600VA",
              "135",
              "76",
              "",
              "",
              "",
              "",
              "",
              ""
            ],
            [
              "64/140-65",
              "800VA",
              "155",
              "85",
              "",
              "",
              "",
              "",
              "",
              ""
            ],
            [
              "70/155-65",
              "1000VA",
              "170",
              "85",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ]
        }
      ],
      "notes": [
        "Base and mounting dimensions for 400–1000 VA are not supplied in the table. The brochure’s use of T for its stated core “permeability” is dimensionally unusual and has not been corrected."
      ],
      "slug": "od-toroidal-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/od-toroidal-transformers.webp",
      "href": "/products/series/od-toroidal-transformers",
      "pdfPage": 7,
      "side": "left",
      "sheet": "/catalog/sheets/07-left.webp",
      "sheetWidth": 1006,
      "sheetHeight": 1375
    },
    {
      "id": 7,
      "title": "Industrial Microwave Transformers",
      "family": "Specialty Transformers",
      "description": "High-voltage current-stabilising leakage transformers for industrial microwave equipment.",
      "sections": [
        {
          "heading": "Applications",
          "paragraphs": [
            "A specialised electronic-transformer design for demanding microwave equipment. Used as a power transformer and an isolation/current-stabilising transformer in food processing, pharmaceuticals, chemicals, building materials and other microwave processes."
          ]
        },
        {
          "heading": "Operating principle",
          "paragraphs": [
            "Also described as a high-voltage constant-current transformer. Magnetic shunts are placed between primary and secondary windings, increasing their insulation separation. The shunt thickness determines current-stabilising performance. The primary operates in the unsaturated magnetic region and the secondary in the saturated region; this is a purpose-designed leakage-flux/leakage-inductance transformer."
          ]
        },
        {
          "heading": "Construction and features",
          "paragraphs": [
            "Developed for prolonged industrial duty where conventional microwave transformers may overheat or require frequent replacement. Uses quality copper wire, Chinese silicon-steel laminations, automated pressure-welding and CNC winding.",
            "To reduce the temperature rise associated with the saturating magnetic design, the brochure specifies Class H silicon-powder varnish and vacuum impregnation. It describes lower heating, vibration and noise, and a service-life claim of 6–9 times that of an ordinary transformer; this is a brochure claim without comparative test data on this page. It describes compatibility with magnetrons from Panasonic, Samsung and other manufacturers."
          ]
        },
        {
          "heading": "Dimensions and customisation",
          "paragraphs": [
            "Overall and mounting dimensions are supplied in the user manual. Special dimensions can be manufactured to order."
          ]
        }
      ],
      "specifications": [],
      "models": [
        {
          "designation": "500W",
          "values": []
        },
        {
          "designation": "600W",
          "values": []
        },
        {
          "designation": "700W",
          "values": []
        },
        {
          "designation": "800W",
          "values": []
        },
        {
          "designation": "900W",
          "values": []
        },
        {
          "designation": "1000W",
          "values": []
        },
        {
          "designation": "1.5KW",
          "values": []
        },
        {
          "designation": "2KW",
          "values": []
        },
        {
          "designation": "2.5KW",
          "values": []
        },
        {
          "designation": "3KW",
          "values": []
        }
      ],
      "tables": [],
      "notes": [],
      "slug": "industrial-microwave-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/industrial-microwave-transformers.webp",
      "href": "/products/series/industrial-microwave-transformers",
      "pdfPage": 7,
      "side": "right",
      "sheet": "/catalog/sheets/07-right.webp",
      "sheetWidth": 1007,
      "sheetHeight": 1375
    },
    {
      "id": 8,
      "title": "R-Core Transformers",
      "family": "R-Core Transformers",
      "description": "Continuous strip-wound, ungapped R-core transformers for electronic power supplies.",
      "sections": [
        {
          "heading": "Overview",
          "paragraphs": [
            "The core is continuously wound from high-quality silicon-steel strip that changes uniformly from narrow to wide and back to narrow, with no cut in the core and an approximately circular cross-section. Compared with traditional C- and E-core transformers, the brochure highlights low leakage flux, low temperature rise, compact dimensions, low weight and quiet operation.",
            "Applications include audio, television and broadcasting equipment, satellite receivers, photocopiers, computers, medical instruments, electronic balances and other electronic apparatus.",
            "The manufacturer describes single- and three-phase R-core products ranging from R10VA–30KVA and SR1KVA–SR10KVA, with other capacities available on enquiry."
          ]
        }
      ],
      "specifications": [],
      "models": [],
      "tables": [
        {
          "caption": "R-core power ratings and dimensions",
          "columns": [
            "Model",
            "Power W",
            "A",
            "W",
            "X",
            "E",
            "F",
            "G"
          ],
          "rows": [
            [
              "R-5",
              "2–6",
              "58",
              "47",
              "26",
              "45",
              "33",
              "4"
            ],
            [
              "R-8",
              "7–10",
              "70",
              "61",
              "33",
              "53",
              "44",
              "4"
            ],
            [
              "R-10",
              "11–15",
              "75",
              "61",
              "37",
              "68",
              "48",
              "4"
            ],
            [
              "R-20",
              "20–24",
              "82",
              "70",
              "39",
              "56",
              "46",
              "4×7"
            ],
            [
              "R-25",
              "25–34",
              "83",
              "72",
              "42",
              "70",
              "55",
              "4"
            ],
            [
              "R-30",
              "35–44",
              "97",
              "77",
              "42",
              "70",
              "60",
              "5"
            ],
            [
              "R-40",
              "45–54",
              "99",
              "80",
              "44",
              "70",
              "60",
              "5"
            ],
            [
              "R50",
              "55–65",
              "102",
              "90",
              "48",
              "75",
              "65",
              "5"
            ],
            [
              "R80",
              "70–95",
              "125",
              "90",
              "52",
              "90",
              "70",
              "5"
            ],
            [
              "R100",
              "96–130",
              "126",
              "103",
              "55",
              "100",
              "80",
              "5"
            ],
            [
              "R160",
              "131–200",
              "140",
              "115",
              "63",
              "100",
              "85",
              "5"
            ],
            [
              "R260",
              "201–280",
              "160",
              "121",
              "66",
              "130",
              "95",
              "5"
            ],
            [
              "R320",
              "290–370",
              "163",
              "128",
              "70",
              "135",
              "95",
              "5"
            ],
            [
              "R600",
              "371–640",
              "190",
              "145",
              "85",
              "142",
              "100",
              "8"
            ],
            [
              "R1000",
              "650–1250",
              "227",
              "172",
              "99",
              "180",
              "140",
              "8"
            ],
            [
              "R1500",
              "1300–1800",
              "238",
              "180",
              "102",
              "175",
              "145",
              "8"
            ],
            [
              "R2000",
              "1800–2500",
              "240",
              "200",
              "105",
              "185",
              "160",
              "8"
            ],
            [
              "R3000",
              "2500–3500",
              "260",
              "226",
              "125",
              "200",
              "180",
              "8"
            ],
            [
              "R5000",
              "4000–5500",
              "390",
              "300",
              "180",
              "300",
              "240",
              "8"
            ]
          ]
        }
      ],
      "notes": [],
      "slug": "r-core-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/r-core-transformers.webp",
      "href": "/products/series/r-core-transformers",
      "pdfPage": 8,
      "side": "left",
      "sheet": "/catalog/sheets/08-left.webp",
      "sheetWidth": 1006,
      "sheetHeight": 1375
    },
    {
      "id": 9,
      "title": "DTZ Elevator Transformers",
      "family": "Elevator Control Transformers",
      "description": "Integrated transformer and rectifier supplies for elevators and goods lifts.",
      "sections": [
        {
          "heading": "Overview and construction",
          "paragraphs": [
            "Developed from the JBK5 machine-tool control transformer. Uses low-loss silicon-steel laminations, flame-retardant bobbins and terminals, Class H oxygen-free copper wire, Class H insulation varnish and insulation materials. CNC argon-arc welding joins the laminations and base into a single assembly, followed by overall vacuum-pressure varnish impregnation.",
            "The brochure highlights compact construction, a neat appearance, low ripple, low power consumption, high control capacity and a high protection level. Mounting dimensions are described as equivalent to JBK5."
          ]
        },
        {
          "heading": "Application scope",
          "paragraphs": [
            "For AC 50–60 Hz circuits with rated voltage not exceeding 1000 V and DC110 V, AC110 V or AC220 V outputs. Primarily for elevators and commercial goods lifts; also for other equipment requiring combined AC and DC power supplies."
          ]
        },
        {
          "heading": "Features",
          "paragraphs": [
            "The brochure states that the product meets IEC standards, without identifying a particular IEC number here. Transformer and rectifier are integrated in a compact assembly.",
            "Rated input has ±5% taps. A gas-shielded argon-arc-welded core is described as ungapped, low-loss and quiet.",
            "Integrated terminal and bobbin design is stated to provide IP20 protection."
          ]
        }
      ],
      "specifications": [
        [
          "Rated input voltage",
          "AC220V±5%, AC380V±5%"
        ],
        [
          "Rated output voltage",
          "DC110V, AC110V, AC220V"
        ],
        [
          "Rated output current",
          "2A, 5A, 10A, 20A"
        ],
        [
          "Rated-load output voltage",
          "95%Un 》75%"
        ],
        [
          "Efficiency",
          ">75%"
        ],
        [
          "Ripple factor",
          "≤5%"
        ],
        [
          "Power-frequency withstand: core to input",
          "AV2500V 1min"
        ],
        [
          "Power-frequency withstand: core to output",
          "AV2500V 1min"
        ],
        [
          "Ambient temperature",
          "-5°C to +40°C"
        ]
      ],
      "models": [],
      "tables": [
        {
          "caption": "Overall and mounting dimensions",
          "columns": [
            "Model",
            "Bmax",
            "Dmax",
            "Emax",
            "Mounting-hole spacing A",
            "Mounting-hole spacing C",
            "Mounting hole K",
            "Fmax",
            "Arrangement"
          ],
          "rows": [
            [
              "DTZ-630",
              "150",
              "110",
              "140",
              "122±0.5",
              "90±0.5",
              "7",
              "2",
              ""
            ],
            [
              "DTZ-900",
              "150",
              "128",
              "142",
              "122±0.5",
              "105±0.5",
              "7",
              "2",
              ""
            ],
            [
              "DTZ-1000",
              "168",
              "128",
              "170",
              "137±0.5",
              "105±0.5",
              "9×15",
              "2",
              "Upright"
            ],
            [
              "DTZ-1600",
              "168",
              "138",
              "170",
              "137±0.5",
              "118±0.5",
              "9×15",
              "2",
              "Upright"
            ]
          ]
        }
      ],
      "notes": [
        "The rated-load output-voltage entry “95%Un 》75%” and dielectric-test notation “AV2500V” are reproduced without correction; their meaning must be confirmed before specification."
      ],
      "slug": "dtz-elevator-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/dtz-elevator-transformers.webp",
      "href": "/products/series/dtz-elevator-transformers",
      "pdfPage": 8,
      "side": "right",
      "sheet": "/catalog/sheets/08-right.webp",
      "sheetWidth": 1007,
      "sheetHeight": 1375
    },
    {
      "id": 10,
      "title": "UDG Transformers for Single-Phase Power-Conversion Equipment",
      "family": "Power Conversion Transformers",
      "description": "50/60 Hz transformers used within UPS, EPS, stabilised, variable-frequency and inverter supplies.",
      "sections": [
        {
          "heading": "Overview",
          "paragraphs": [
            "Power transformers for single-phase UPS, EPS, voltage-stabilised power supplies, variable-frequency supplies, inverters and rectifier equipment. The brochure describes targeted development and testing of materials, processes and construction, with high-flux electrical silicon steel, abrasion-resistant high-temperature winding wire and insulation, and comprehensive inspection equipment.",
            "The brochure claims 100% product applicability and factory acceptance and customer satisfaction above 95%; no supporting test or survey data are included on this page. Stated features include compact size, low noise, a neat appearance, resistance to high temperature and effective self-cooling."
          ]
        }
      ],
      "specifications": [
        [
          "Input voltage",
          "AC15V–600V"
        ],
        [
          "Output voltage",
          "AC100V–600V"
        ],
        [
          "Frequency",
          "50/60Hz"
        ],
        [
          "Power range",
          "0.5KW–100KW"
        ],
        [
          "Cooling",
          "Natural air cooling or forced air cooling"
        ],
        [
          "Ambient temperature",
          "-5 to +40°C"
        ],
        [
          "Dielectric strength",
          "2500V/1min"
        ],
        [
          "Insulation class",
          "B/F/H"
        ]
      ],
      "models": [],
      "tables": [
        {
          "caption": "Overall and mounting dimensions",
          "columns": [
            "Capacity",
            "A",
            "B",
            "C",
            "D",
            "E",
            "F",
            "G",
            "H",
            "Maximum overall dimensions"
          ],
          "rows": [
            [
              "1KVA",
              "165±2",
              "100±1",
              "125±2",
              "95±5",
              "65±2",
              "8±1",
              "18±1",
              "197±5",
              "165×150×200"
            ],
            [
              "2KVA",
              "180±2",
              "110±1",
              "145±2",
              "110±5",
              "75±2",
              "8±1",
              "18±1",
              "212±5",
              "180×170×215"
            ],
            [
              "3KVA",
              "180±2",
              "110±1",
              "160±2",
              "125±5",
              "90±2",
              "8±1",
              "18±1",
              "221±5",
              "180×190×230"
            ],
            [
              "4KVA",
              "200±2",
              "120±1",
              "170±2",
              "130±5",
              "90±2",
              "10±1",
              "25±1",
              "232±5",
              "200×200×240"
            ],
            [
              "5KVA",
              "215±2",
              "135±1",
              "175±2",
              "135±5",
              "95±2",
              "10±1",
              "25±1",
              "267±5",
              "215×205×270"
            ],
            [
              "6KVA",
              "230±2",
              "135±1",
              "175±2",
              "135±5",
              "95±2",
              "10±1",
              "25±1",
              "285±5",
              "230×205×290"
            ],
            [
              "7KVA",
              "230±2",
              "135±1",
              "185±2",
              "145±5",
              "105±2",
              "10±1",
              "25±1",
              "293±5",
              "230×210×295"
            ],
            [
              "8KVA",
              "230±2",
              "135±1",
              "190±2",
              "150±5",
              "110±2",
              "10±1",
              "25±1",
              "305±5",
              "230×215×310"
            ],
            [
              "9KVA",
              "250±2",
              "155±1",
              "188±2",
              "148±5",
              "108±2",
              "10±1",
              "25±1",
              "315±5",
              "250×215×320"
            ],
            [
              "10KVA",
              "250±2",
              "155±1",
              "193±2",
              "153±5",
              "113±2",
              "10±1",
              "25±1",
              "330±5",
              "250×220×335"
            ]
          ]
        }
      ],
      "notes": [
        "The brochure calls this a variable-frequency transformer, but it is a transformer component, not a complete frequency converter. The kW range and kVA dimension-table capacities are retained as separate original entries."
      ],
      "slug": "udg-single-phase-converter-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/udg-single-phase-converter-transformers.webp",
      "href": "/products/series/udg-single-phase-converter-transformers",
      "pdfPage": 9,
      "side": "left",
      "sheet": "/catalog/sheets/09-left.webp",
      "sheetWidth": 1006,
      "sheetHeight": 1375
    },
    {
      "id": 11,
      "title": "UN/DN/FN Resistance-Welding Transformers",
      "family": "Welding Transformers",
      "description": "Low-voltage, high-current water-cooled transformers for resistance-welding equipment.",
      "sections": [
        {
          "heading": "Overview",
          "paragraphs": [
            "UN/DN/FN series for butt-welding and seam-welding machines use precision-cut quality silicon-steel laminations. The brochure describes low losses, low no-load current, low secondary voltage, high current and adjustable welding current.",
            "Forced-water-cooled construction with single-phase 380 V supply. The brochure highlights operating reliability, welding efficiency, speed and joint strength, with reduced welding cost. Suitable for multiple materials, especially cold-rolled sheet, galvanised sheet and cold-drawn bar."
          ]
        },
        {
          "heading": "Applications",
          "paragraphs": [
            "For small and medium weldments in low-carbon and low-alloy steels, wire and stainless-steel sheet, including oil tanks, basins, cans and drums. Industries include hardware, domestic appliances, automotive, power equipment and sheet-metal manufacturing."
          ]
        },
        {
          "heading": "Customisation",
          "paragraphs": [
            "Other ratings and dimensions can be manufactured as non-standard transformers to customer requirements."
          ]
        }
      ],
      "specifications": [],
      "models": [],
      "tables": [
        {
          "caption": "Resistance-welding transformer ratings and dimensions",
          "columns": [
            "Model",
            "Power",
            "No-load voltage",
            "Frequency",
            "Duty cycle",
            "Overall dimensions (mm)",
            "Mounting dimensions (mm)"
          ],
          "rows": [
            [
              "UN",
              "40KVA",
              "4.75V",
              "50–60Hz",
              "50%",
              "305×165×340",
              "245×115"
            ],
            [
              "UN",
              "60KVA",
              "5.9V",
              "50–60Hz",
              "50%",
              "350×170×350",
              "280×120"
            ],
            [
              "UN",
              "80KVA",
              "7.5V",
              "50–60Hz",
              "50%",
              "370×200×400",
              "280×135"
            ],
            [
              "UN",
              "100KVA",
              "8.5V",
              "50–60Hz",
              "50%",
              "400×200×420",
              "305×145"
            ],
            [
              "UN",
              "150KVA",
              "10.5V",
              "50–60Hz",
              "50%",
              "420×230×460",
              "315×155"
            ],
            [
              "UN",
              "200KVA",
              "11.5V",
              "50–60Hz",
              "50%",
              "3450×240×470",
              "340×160"
            ]
          ]
        }
      ],
      "notes": [
        "The 200KVA overall dimension is printed as 3450×240×470 mm and is retained without correction. Confirm this unusually large first dimension before installation."
      ],
      "slug": "un-resistance-welding-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/un-resistance-welding-transformers.webp",
      "href": "/products/series/un-resistance-welding-transformers",
      "pdfPage": 9,
      "side": "right",
      "sheet": "/catalog/sheets/09-right.webp",
      "sheetWidth": 1007,
      "sheetHeight": 1375
    },
    {
      "id": 12,
      "title": "SLD Fixed Step-Up/Step-Down Autotransformers",
      "family": "Autotransformers",
      "description": "Enclosed fixed-ratio voltage converters for equipment with mismatched supply voltages.",
      "sections": [
        {
          "heading": "Overview",
          "paragraphs": [
            "The brochure describes conversion from 220 V to 110 V or from 110 V to 220 V, without waveform distortion, with high efficiency, a neat appearance, convenient use and continuous-duty capability. Applications include domestic and industrial equipment from Japan, Korea, Taiwan and other markets with different supply voltages."
          ]
        },
        {
          "heading": "Model designation",
          "paragraphs": [
            "SL: step-up/step-down type; D: single-phase transformer; suffix: power in VA."
          ]
        },
        {
          "heading": "Operating arrangement",
          "paragraphs": [
            "The internal transformer is an autotransformer. A selector provides 110 V or 100 V outputs. The brochure specifies an analogue output-voltage meter below 1KVA and a digital voltmeter above 2KVA.",
            "The brochure describes universal output sockets for its “1–3KVA and below” range. Units above 5KVA have an overload alarm. The full series is described as having overcurrent and short-circuit protection."
          ]
        },
        {
          "heading": "Customisation",
          "paragraphs": [
            "Other capacities and input/output voltages can be manufactured to customer requirements."
          ]
        }
      ],
      "specifications": [],
      "models": [],
      "tables": [
        {
          "caption": "Ratings and dimensions",
          "columns": [
            "Capacity",
            "Input voltage",
            "Frequency",
            "Output voltage",
            "Overall dimensions (mm)"
          ],
          "rows": [
            [
              "0.5KVA",
              "220V or 380V",
              "50–60Hz",
              "100V or 110V",
              "280×140×155"
            ],
            [
              "1KVA",
              "220V or 380V",
              "50–60Hz",
              "100V or 110V",
              "285×155×162"
            ],
            [
              "1.5KVA",
              "220V or 380V",
              "50–60Hz",
              "100V or 110V",
              "320×195×190"
            ],
            [
              "2KVA",
              "220V or 380V",
              "50–60Hz",
              "100V or 110V",
              "440×300×320"
            ],
            [
              "3KVA",
              "220V or 380V",
              "50–60Hz",
              "100V or 110V",
              "440×300×320"
            ],
            [
              "5KVA",
              "220V or 380V",
              "50–60Hz",
              "100V or 110V",
              "440×300×320"
            ],
            [
              "6KVA",
              "220V or 380V",
              "50–60Hz",
              "100V or 110V",
              "440×300×320"
            ],
            [
              "8KVA",
              "220V or 380V",
              "50–60Hz",
              "100V or 110V",
              "440×300×320"
            ],
            [
              "10KVA",
              "220V or 380V",
              "50–60Hz",
              "100V or 110V",
              "300×320×420"
            ]
          ]
        }
      ],
      "notes": [
        "The introductory 220/110 V description differs from the table’s 220V or 380V input and 100V or 110V output. Both original entries are retained. Meter and socket capacity thresholds are quoted as printed; confirm exact options when ordering."
      ],
      "slug": "sld-step-up-step-down-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/sld-step-up-step-down-transformers.webp",
      "href": "/products/series/sld-step-up-step-down-transformers",
      "pdfPage": 10,
      "side": "left",
      "sheet": "/catalog/sheets/10-left.webp",
      "sheetWidth": 1006,
      "sheetHeight": 1375
    },
    {
      "id": 13,
      "title": "JMB Portable Task-Lighting Transformers",
      "family": "Safety Lighting Transformers",
      "description": "50–60 Hz transformers for control circuits, safety lighting and indicator lamps.",
      "sections": [
        {
          "heading": "Application scope",
          "paragraphs": [
            "Used in electronics, industrial and mining enterprises, machine tools and mechanical equipment for general control circuits, safety lighting and indicator-lamp supplies."
          ]
        },
        {
          "heading": "Model designation",
          "paragraphs": [
            "J: local; M: lighting; B: transformer; suffix: rated capacity in VA."
          ]
        },
        {
          "heading": "Winding arrangement",
          "paragraphs": [
            "Primary and secondary windings are wound separately. If only one secondary winding is provided, it carries the full rated transformer capacity. Where control, lighting and indicator windings are combined, each is wound according to its allocated capacity.",
            "For a single tapped secondary winding, intermediate taps have capacities lower than the transformer rating. Only the highest-voltage output terminals can carry full rated capacity."
          ]
        },
        {
          "heading": "Operating environment",
          "paragraphs": [
            "Altitude not exceeding 2500 m. Ambient air temperature from -25°C to +40°C. The maximum mean relative humidity in the wettest month is 90%.",
            "Install where there is no severe vibration or impact, no explosive atmosphere, and no gases or conductive dust sufficient to corrode metal or damage insulation.",
            "The brochure’s sixth environmental condition reads “locations exposed to rain and snow”; this original wording is retained and requires confirmation against the supplied enclosure rating."
          ]
        }
      ],
      "specifications": [],
      "models": [],
      "tables": [
        {
          "caption": "Ratings and overall dimensions; alternative dimensions retained in the same row",
          "columns": [
            "Rating (VA)",
            "Rated input (V)",
            "Rated output (V)",
            "Overall dimensions (mm)"
          ],
          "rows": [
            [
              "25",
              "220",
              "6",
              "150×160×130"
            ],
            [
              "50",
              "220",
              "(6.3)",
              "150×160×130"
            ],
            [
              "100",
              "220",
              "12",
              "150×160×130"
            ],
            [
              "150",
              "220",
              "24",
              "160×170×135"
            ],
            [
              "200",
              "220",
              "36.48",
              "160×170×135"
            ],
            [
              "250",
              "200",
              "110",
              "180×170×155"
            ],
            [
              "300",
              "380",
              "127",
              "180×170×155"
            ],
            [
              "400",
              "380",
              "220",
              "210×230×175"
            ],
            [
              "500",
              "380",
              "(330)",
              "210×230×175; 200×175×175"
            ],
            [
              "700",
              "220",
              "6",
              "218×290×185"
            ],
            [
              "1000",
              "220",
              "(6.3)",
              "218×290×185; 210×230×185"
            ],
            [
              "1500",
              "220",
              "12",
              "260×290×235"
            ],
            [
              "2000",
              "220",
              "24",
              "260×290×235; 240×240×225"
            ],
            [
              "2500",
              "220",
              "36.48",
              "280×350×230"
            ],
            [
              "3000",
              "220",
              "110",
              "280×350×230; 250×300×240"
            ],
            [
              "4000",
              "380",
              "127",
              "360×355×280"
            ],
            [
              "5000",
              "380",
              "220",
              "360×355×280; 350×290×285"
            ],
            [
              "10K",
              "380",
              "(330)",
              "510×430×490"
            ]
          ]
        }
      ],
      "notes": [
        "The table’s 250VA input is 200V, retained exactly. The output string “36.48” is reproduced as printed; confirm whether it denotes separate 36 V and 48 V options. Parentheses and the “10K” capacity notation are also retained.",
        "Rows containing two overall dimensions show both printed alternatives; the source does not label the construction differences."
      ],
      "slug": "jmb-lighting-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/jmb-lighting-transformers.webp",
      "href": "/products/series/jmb-lighting-transformers",
      "pdfPage": 10,
      "side": "right",
      "sheet": "/catalog/sheets/10-right.webp",
      "sheetWidth": 1007,
      "sheetHeight": 1375
    },
    {
      "id": 14,
      "title": "DM Neutral-to-Earth Voltage Reduction Isolation Transformers",
      "family": "Isolation Transformers",
      "description": "Electrically separated primary and secondary windings for equipment isolation and noise control.",
      "sections": [
        {
          "heading": "Overview",
          "paragraphs": [
            "An isolation transformer provides electrical separation between input and output windings. The brochure describes early adoption in European power applications and use in electronics, industrial and mining enterprises, machine tools and mechanical equipment to reduce or eliminate neutral-to-earth voltage. It may also supply general control circuits, safety lighting and indicator lamps."
          ]
        },
        {
          "heading": "Functions described in the brochure",
          "paragraphs": [
            "The primary and secondary circuits are electrically insulated. High-frequency core losses help suppress high-frequency interference entering control circuits.",
            "The brochure discusses floating secondary systems only for limited supply areas with short circuits and low earth-capacitance current. It also describes earthing one secondary terminal, designated as neutral, to reduce neutral-to-earth voltage below 0.2 V. These are descriptions of the source text, not a substitute for the project earthing and protection design.",
            "The brochure emphasises separation from hazardous voltage as a personnel-protection function."
          ]
        },
        {
          "heading": "Principle and application examples",
          "paragraphs": [
            "Operation is based on electromagnetic induction. The brochure describes a commonly used 1:1 transformer for servicing equipment with an unearthed secondary, but also explains that isolation transformers need not have a 1:1 ratio.",
            "Examples include valve amplifiers, valve radios, oscilloscopes, lathe control supplies, colour-television servicing and air-conditioning equipment."
          ]
        },
        {
          "heading": "Electrostatic shielding",
          "paragraphs": [
            "A non-closed copper sheet or non-magnetic conductive paper screen is installed between primary and secondary windings and connected to the enclosure. A surrounding shielding enclosure and screened winding terminals may be added to reduce external electromagnetic interference.",
            "The brochure states that this leaves predominantly magnetic coupling and can reduce equivalent distributed capacitance below 0.01 pF, thereby reducing capacitive current and suppressing interference from the supply and other circuits."
          ]
        }
      ],
      "specifications": [],
      "models": [],
      "tables": [
        {
          "caption": "Ratings and dimensions",
          "columns": [
            "Capacity",
            "Input voltage",
            "Frequency",
            "Output voltage",
            "Overall dimensions (mm)"
          ],
          "rows": [
            [
              "0.5KVA",
              "220V or 380V",
              "50–60Hz",
              "220V or 380V",
              "280×140×155"
            ],
            [
              "1KVA",
              "220V or 380V",
              "50–60Hz",
              "220V or 380V",
              "285×155×162"
            ],
            [
              "1.5KVA",
              "220V or 380V",
              "50–60Hz",
              "220V or 380V",
              "320×195×190"
            ],
            [
              "2KVA",
              "220V or 380V",
              "50–60Hz",
              "220V or 380V",
              "440×300×320"
            ],
            [
              "3KVA",
              "220V or 380V",
              "50–60Hz",
              "220V or 380V",
              "440×300×320"
            ],
            [
              "5KVA",
              "220V or 380V",
              "50–60Hz",
              "220V or 380V",
              "440×300×320"
            ],
            [
              "6KVA",
              "220V or 380V",
              "50–60Hz",
              "220V or 380V",
              "440×300×320"
            ],
            [
              "8KVA",
              "220V or 380V",
              "50–60Hz",
              "220V or 380V",
              "440×300×320"
            ],
            [
              "10KVA",
              "220V or 380V",
              "50–60Hz",
              "220V or 380V",
              "300×320×420"
            ]
          ]
        }
      ],
      "notes": [
        "The below-0.2 V neutral-to-earth and below-0.01 pF capacitance figures are brochure claims, not project guarantees. Earthing, protective devices and touch-voltage requirements must be engineered for the installation."
      ],
      "slug": "dm-isolation-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/dm-isolation-transformers.webp",
      "href": "/products/series/dm-isolation-transformers",
      "pdfPage": 11,
      "side": "left",
      "sheet": "/catalog/sheets/11-left.webp",
      "sheetWidth": 1006,
      "sheetHeight": 1375
    },
    {
      "id": 15,
      "title": "JY Heating Transformers",
      "family": "Heating Transformers",
      "description": "Isolating low-voltage, high-current supplies for resistance heating and process applications.",
      "sections": [
        {
          "heading": "Overview",
          "paragraphs": [
            "Designed as an alternative to conventional voltage-regulator heating supplies. The brochure describes typical heating-wire operating voltages of approximately 3–80 V at high current; prolonged high contact temperature between a regulator’s carbon brush and winding may damage the winding contact surface.",
            "A conventional autotransformer retains a conductive connection to the mains, including at a 3 V setting. JY transformers are described as providing mains isolation, low voltage, high current, contactless transformer operation, reliability and prolonged duty. An electronic voltage regulator can be added for smooth stepless output adjustment."
          ]
        },
        {
          "heading": "Applications",
          "paragraphs": [
            "Plastics, rubber, garment cutting, vacuum heating, foam processing, toys, craft production, motor lead-end welding, metal heating and high-current testing."
          ]
        },
        {
          "heading": "Model designation",
          "paragraphs": [
            "J: heating; Y: transformer; suffix: capacity."
          ]
        },
        {
          "heading": "Customisation",
          "paragraphs": [
            "Other specifications and parameters are detailed in the installation/user manual. Custom designs can be manufactured to customer requirements."
          ]
        }
      ],
      "specifications": [
        [
          "Input voltage",
          "220V, 380V"
        ],
        [
          "Output voltage",
          "Selected to suit heating-wire resistance"
        ],
        [
          "Transformer capacity",
          "50VA–500KVA"
        ],
        [
          "Current-adjustment versions",
          "Fixed output; continuously adjustable; eight-position switch adjustment"
        ],
        [
          "Finished supply functions",
          "Output-power indication; stepless current adjustment; overtemperature alarm"
        ],
        [
          "Finished supplies below 10KVA: overall L×W×H",
          "440mm×300mm×320mm"
        ]
      ],
      "models": [],
      "tables": [],
      "notes": [],
      "slug": "jy-heating-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/jy-heating-transformers.webp",
      "href": "/products/series/jy-heating-transformers",
      "pdfPage": 11,
      "side": "right",
      "sheet": "/catalog/sheets/11-right.webp",
      "sheetWidth": 1007,
      "sheetHeight": 1375
    },
    {
      "id": 16,
      "title": "High-Voltage Cast-Resin Transformers",
      "family": "Cast Resin Dry-Type Transformers",
      "description": "Epoxy-cast transformer insulation for high-voltage and high-potential applications.",
      "sections": [
        {
          "heading": "Insulation and materials",
          "paragraphs": [
            "The brochure describes voltages of several kilovolts to several tens of kilovolts between primary, secondary and core, with very low leakage-current requirements. Conventional insulation design and ordinary materials may not meet these requirements.",
            "Epoxy resin is described as providing good electrical, mechanical and processing properties, flame resistance and adaptability to environmental conditions. The brochure gives a typical cured-resin breakdown strength of 35–50 kV/mm and volume resistivity of 10^13–10^16 Ω·cm.",
            "Epoxy products are described as having strong adhesion, high mechanical strength, low shrinkage and dimensional stability. At room temperature or with slight heating, the material can be a flowing liquid and mixed with processing agents, facilitating casting processes in transformers, especially high-voltage/high-potential designs."
          ]
        },
        {
          "heading": "Product features",
          "paragraphs": [
            "The brochure describes epoxy-cast dry-type distribution transformers as having good insulation, short-circuit strength and lightning-impulse withstand. Both HV and LV windings are cast and sealed in resin with resistance to cracking and high temperature, high mechanical strength and long service life.",
            "It describes flame resistance, moisture resistance, explosion resistance and absence of pollution, with compact dimensions and low noise. The brochure states that forced-air cooling permits approximately 40% overload of rated capacity; operating limits must be confirmed for the actual transformer."
          ]
        },
        {
          "heading": "Applications",
          "paragraphs": [
            "The brochure describes operation near load centres, fire safety, high mechanical and short-circuit strength, low partial discharge, good thermal stability, reliability and long service life. It highlights heat dissipation, overload capability and increased operating capacity with forced-air cooling.",
            "Applications listed are high-rise buildings, railway stations, airports, ports, metro systems, power stations and other important transmission/distribution sites, as well as electrical systems requiring high dielectric withstand. It also describes operation in humid and other difficult environments."
          ]
        }
      ],
      "specifications": [
        [
          "Typical cured epoxy breakdown strength",
          "35–50 kV/mm"
        ],
        [
          "Typical cured epoxy volume resistivity",
          "10^13–10^16 Ω·cm"
        ],
        [
          "Forced-air cooling overload claim",
          "Approximately 40% above rated capacity"
        ]
      ],
      "models": [],
      "tables": [],
      "notes": [
        "This page has no model/rating table. Material properties, explosion-resistance wording and overload statements are reproduced as brochure descriptions; they are not independently verified equipment certifications or unconditional operating ratings."
      ],
      "slug": "high-voltage-cast-resin-transformers",
      "category": "dry-type-transformers",
      "categoryTitle": "Dry-Type Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/high-voltage-cast-resin-transformers.webp",
      "href": "/products/series/high-voltage-cast-resin-transformers",
      "pdfPage": 11,
      "side": "right",
      "sheet": "/catalog/sheets/11-right.webp",
      "sheetWidth": 1007,
      "sheetHeight": 1375
    },
    {
      "id": 17,
      "title": "SG Three-Phase Dry-Type Transformers (Rectifier Applications)",
      "family": "Three-Phase Industrial Transformers",
      "description": "Configurable three-phase dry-type transformers for low-voltage supplies and rectifier equipment.",
      "sections": [
        {
          "heading": "Application scope",
          "paragraphs": [
            "The manufacturer describes production of three-phase dry-type transformers from 150VA to 600KVA using quality materials and developed manufacturing processes.",
            "For AC 50/60 Hz three-phase supplies with input and output voltages not exceeding 1000 V. Input/output voltages, vector group, tap quantity and position (normally ±5%), winding capacity allocation, additional single-phase secondary windings, rectifier-circuit use and enclosure requirements can be designed to customer specifications."
          ]
        },
        {
          "heading": "Model designation",
          "paragraphs": [
            "SG: S denotes three-phase; G denotes dry-type transformer; suffixes indicate rated capacity in VA and voltage class in V. The adjacent control-transformer designation drawing identifies S: three-phase and BK: control transformer, followed by rated capacity and voltage class."
          ]
        }
      ],
      "specifications": [],
      "models": [],
      "tables": [
        {
          "caption": "Overall and mounting dimensions",
          "columns": [
            "Model",
            "Bmax",
            "Dmax",
            "Emax",
            "A ±0.4",
            "C ±1.5",
            "Mounting hole K",
            "Mounting hole J"
          ],
          "rows": [
            [
              "SG-100VA",
              "120",
              "72",
              "110",
              "84",
              "53",
              "6",
              "12"
            ],
            [
              "SG-300VA",
              "180",
              "106",
              "180",
              "90",
              "86",
              "7",
              "18"
            ],
            [
              "SG-500VA",
              "180",
              "116",
              "180",
              "90",
              "96",
              "7",
              "18"
            ],
            [
              "SG-1000VA",
              "240",
              "124",
              "230",
              "120",
              "99",
              "9",
              "25"
            ],
            [
              "SG-1500VA",
              "240",
              "124",
              "230",
              "120",
              "99",
              "9",
              "25"
            ],
            [
              "SG-2000VA",
              "240",
              "144",
              "230",
              "120",
              "119",
              "9",
              "25"
            ],
            [
              "SG-2500VA",
              "240",
              "144",
              "230",
              "120",
              "119",
              "9",
              "25"
            ],
            [
              "SG-3000VA",
              "300",
              "160",
              "280",
              "150",
              "125",
              "11",
              "25"
            ],
            [
              "SG-4000VA",
              "300",
              "160",
              "280",
              "150",
              "125",
              "11",
              "25"
            ],
            [
              "SG-5000VA",
              "300",
              "175",
              "280",
              "150",
              "140",
              "11",
              "25"
            ],
            [
              "SG-6000VA",
              "300",
              "185",
              "280",
              "150",
              "150",
              "11",
              "25"
            ],
            [
              "SG-7000VA",
              "300",
              "185",
              "280",
              "150",
              "150",
              "11",
              "25"
            ],
            [
              "SG-8000VA",
              "360",
              "185",
              "340",
              "200",
              "135",
              "11",
              "25"
            ],
            [
              "SG-10000VA",
              "360",
              "185",
              "340",
              "200",
              "135",
              "11",
              "25"
            ],
            [
              "SG-15KVA",
              "410",
              "200",
              "390",
              "200",
              "160",
              "11",
              "25"
            ],
            [
              "SG-20KVA",
              "430",
              "215",
              "390",
              "200",
              "175",
              "11",
              "25"
            ],
            [
              "SG-30KVA",
              "450",
              "270",
              "410",
              "200",
              "180",
              "11",
              "25"
            ],
            [
              "SG-50KVA",
              "510",
              "300",
              "460",
              "300",
              "200",
              "11",
              "25"
            ],
            [
              "SG-60KVA",
              "535",
              "330",
              "435",
              "300",
              "220",
              "11",
              "25"
            ],
            [
              "SG-80KVA",
              "600",
              "340",
              "490",
              "300",
              "220",
              "11",
              "25"
            ],
            [
              "SG-100KVA",
              "600",
              "350",
              "530",
              "300",
              "240",
              "11",
              "25"
            ]
          ]
        }
      ],
      "notes": [
        "The application text starts its range at 150VA, while the dimension table includes SG-100VA. Both source entries are retained."
      ],
      "slug": "sg-three-phase-dry-type-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/sg-three-phase-dry-type-transformers.webp",
      "href": "/products/series/sg-three-phase-dry-type-transformers",
      "pdfPage": 12,
      "side": "left",
      "sheet": "/catalog/sheets/12-left.webp",
      "sheetWidth": 1006,
      "sheetHeight": 1375
    },
    {
      "id": 18,
      "title": "SSG Three-Phase Servo Transformers",
      "family": "Servo and CNC Transformers",
      "description": "Dry-type, naturally air-cooled transformers for CNC control and power supplies.",
      "sections": [
        {
          "heading": "Application scope",
          "paragraphs": [
            "The brochure describes a 100VA–1000KVA range developed for CNC systems using SG-type technology, with standardised overall and mounting dimensions. It states conformity with VDE0550, IEC439, JB5555 and GB5226; these are unverified brochure statements.",
            "For AC 50/60 Hz three-phase applications with input and output voltages not exceeding 1000 V. Input/output voltage levels and terminal positions, capacity and capacity allocation can be designed to customer requirements."
          ]
        },
        {
          "heading": "Construction",
          "paragraphs": [
            "Naturally air-cooled, compact and lightweight, with heat-resistant insulation and a high insulation class. An optional protective enclosure is described for personnel protection and protection against impact.",
            "Uses imported quality cold-rolled silicon-steel laminations, with a design described as efficient and quiet. Applications include control and motive-power supplies for CNC machine-tool control systems."
          ]
        },
        {
          "heading": "Model designation",
          "paragraphs": [
            "First S: dedicated to CNC machine tools; second S: three-phase; G: dry-type naturally air-cooled; suffixes: rated capacity in VA and voltage class in V."
          ]
        }
      ],
      "specifications": [],
      "models": [],
      "tables": [
        {
          "caption": "Overall and mounting dimensions",
          "columns": [
            "Model",
            "Bmax",
            "Dmax",
            "Emax",
            "A ±0.4",
            "C ±1.5",
            "Mounting hole K",
            "Mounting hole J"
          ],
          "rows": [
            [
              "SSG-100VA",
              "120",
              "72",
              "110",
              "84",
              "53",
              "6",
              "12"
            ],
            [
              "SSG-300VA",
              "180",
              "106",
              "180",
              "90",
              "86",
              "7",
              "18"
            ],
            [
              "SSG-500VA",
              "180",
              "116",
              "180",
              "90",
              "96",
              "7",
              "18"
            ],
            [
              "SSG-1000VA",
              "240",
              "124",
              "230",
              "120",
              "99",
              "9",
              "25"
            ],
            [
              "SSG-1500VA",
              "240",
              "124",
              "230",
              "120",
              "99",
              "9",
              "25"
            ],
            [
              "SSG-2000VA",
              "240",
              "144",
              "230",
              "120",
              "119",
              "9",
              "25"
            ],
            [
              "SSG-2500VA",
              "240",
              "144",
              "230",
              "120",
              "119",
              "9",
              "25"
            ],
            [
              "SSG-3000VA",
              "300",
              "160",
              "280",
              "150",
              "125",
              "11",
              "25"
            ],
            [
              "SSG-4000VA",
              "300",
              "160",
              "280",
              "150",
              "125",
              "11",
              "25"
            ],
            [
              "SSG-5000VA",
              "300",
              "175",
              "280",
              "150",
              "140",
              "11",
              "25"
            ],
            [
              "SSG-6000VA",
              "300",
              "185",
              "280",
              "150",
              "150",
              "11",
              "25"
            ],
            [
              "SSG-7000VA",
              "300",
              "185",
              "280",
              "150",
              "150",
              "11",
              "25"
            ],
            [
              "SSG-8000VA",
              "360",
              "185",
              "340",
              "200",
              "135",
              "11",
              "25"
            ],
            [
              "SSG-10000VA",
              "360",
              "185",
              "340",
              "200",
              "135",
              "11",
              "25"
            ],
            [
              "SSG-15KVA",
              "410",
              "200",
              "390",
              "200",
              "160",
              "11",
              "25"
            ],
            [
              "SSG-20KVA",
              "430",
              "215",
              "390",
              "200",
              "175",
              "11",
              "25"
            ]
          ]
        }
      ],
      "notes": [],
      "slug": "ssg-servo-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/ssg-servo-transformers.webp",
      "href": "/products/series/ssg-servo-transformers",
      "pdfPage": 12,
      "side": "right",
      "sheet": "/catalog/sheets/12-right.webp",
      "sheetWidth": 1007,
      "sheetHeight": 1375
    },
    {
      "id": 19,
      "title": "SG10 Wind/PV Auxiliary and Lighting Isolation Transformers",
      "family": "Renewable Energy Auxiliary Transformers",
      "description": "Three-phase dry-type isolation transformers for renewable-energy auxiliary systems.",
      "sections": [
        {
          "heading": "Application scope and manufacture",
          "paragraphs": [
            "The brochure describes a new energy-saving dry-type design developed with reference to international products for Chinese operating conditions, covering 300VA–1000KVA. It states conformity with IEC439 and GB5226. Windings use an ordered winding process on a removable former, followed by vacuum varnish impregnation for Class F or H insulation.",
            "For AC 50–60 Hz circuits below 1000 V, including imported and domestic wind-power packaged substations as main control transformers, control systems, rectifiers and lighting supplies. Input/output voltages, vector group (normally Dyn11), number and positions of taps (normally ±5%), winding capacity allocation, rectifier application and enclosure can be tailored."
          ]
        },
        {
          "heading": "Isolation and interference suppression",
          "paragraphs": [
            "The brochure describes establishing a new neutral-to-earth connection through an isolation transformer to address common-mode and neutral interference, converting a three-wire delta supply to a four-wire Y0 system. An interwinding screen further reduces internally coupled high-frequency pulse interference and noise.",
            "Correct earthing is emphasised: without it, the described common-mode interference suppression is ineffective. High-quality isolation designs can be supplied to customer requirements."
          ]
        },
        {
          "heading": "Features",
          "paragraphs": [
            "Energy efficiency and low noise: quality cold-rolled silicon-steel laminations, a special varnish-impregnation process and high-temperature insulation reduce vibration/noise and improve temperature capability. Coil ventilation ducts allow airflow to reduce winding temperature.",
            "Reliability: the brochure describes an efficient design without waveform distortion, convenient continuous operation, isolation from the main supply and resistance to switching impact, interference and lightning. It states performance in accordance with GB/6450, as printed.",
            "Environmental characteristics listed are heat resistance, stability, chemical compatibility, low-temperature performance, radiation resistance and non-toxicity."
          ]
        },
        {
          "heading": "Applications",
          "paragraphs": [
            "Listed environments include coastal areas, grasslands, mountain summits, metro systems, high-rise buildings, airports, stations, ports, industrial/mining enterprises and tunnels, including wind-power transmission/distribution and imported wind-power equipment."
          ]
        }
      ],
      "specifications": [],
      "models": [],
      "tables": [
        {
          "caption": "Three-phase isolation-transformer ratings and dimensions",
          "columns": [
            "Model",
            "Drawing",
            "Inverter power (KW)",
            "Rated output current (A)",
            "Three-phase input",
            "Three-phase output",
            "Efficiency",
            "Weight (KG)",
            "W (mm)",
            "D (mm)",
            "H (mm)",
            "W0 (mm)",
            "D0 (mm)"
          ],
          "rows": [
            [
              "FSG-10-EISA-690/400",
              "A",
              "10",
              "14.4",
              "AC690V",
              "AC400V",
              "95%",
              "110",
              "430",
              "260",
              "450",
              "240",
              "176"
            ],
            [
              "FSG-15-EISA-690/400",
              "A",
              "15",
              "21.7",
              "AC690V",
              "AC400V",
              "96%",
              "170",
              "430",
              "320",
              "450",
              "240",
              "236"
            ],
            [
              "FSG-20-EISA-690/400",
              "A",
              "20",
              "28.9",
              "AC690V",
              "AC400V",
              "96.3%",
              "175",
              "430",
              "320",
              "450",
              "240",
              "236"
            ],
            [
              "FSG-30-EISA-690/400",
              "B",
              "30",
              "43.3",
              "AC690V",
              "AC400V",
              "96.6%",
              "260",
              "430",
              "390",
              "520",
              "240",
              "276"
            ],
            [
              "FSG-50-EISA-690/400",
              "B",
              "50",
              "72.2",
              "AC690V",
              "AC400V",
              "96.8%",
              "305",
              "430",
              "390",
              "520",
              "240",
              "276"
            ],
            [
              "FSG-100-EISA-690/400",
              "C",
              "100",
              "144.3",
              "AC690V",
              "AC400V",
              "97.6%",
              "485",
              "600",
              "470",
              "620",
              "550",
              "288"
            ],
            [
              "FSG-125-EISA-690/400",
              "C",
              "125",
              "180.4",
              "AC690V",
              "AC400V",
              "97.9%",
              "570",
              "600",
              "500",
              "620",
              "550",
              "318"
            ]
          ]
        }
      ],
      "notes": [
        "The heading identifies SG10, while all table models use the FSG prefix. Both original designations are retained. These are auxiliary/control isolation transformers, not automatically main generating-station step-up transformers. The GB/6450 reference is retained exactly as printed.",
        "The original table labels inverter power in kW, while the designation and current values do not by themselves establish a confirmed kVA rating. Do not treat kW as kVA or use this auxiliary series as a main PV/BESS step-up transformer."
      ],
      "slug": "sg10-fsg-renewable-auxiliary-transformers",
      "category": "renewable-energy-transformers",
      "categoryTitle": "Solar & Energy Storage Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/sg10-fsg-renewable-auxiliary-transformers.webp",
      "href": "/products/series/sg10-fsg-renewable-auxiliary-transformers",
      "pdfPage": 13,
      "side": "left",
      "sheet": "/catalog/sheets/13-left.webp",
      "sheetWidth": 1006,
      "sheetHeight": 1375
    },
    {
      "id": 20,
      "title": "ZSG Three-Phase Rectifier Transformers",
      "family": "Rectifier Transformers",
      "description": "Three-phase dry-type transformer supplies for rectification and DC systems.",
      "sections": [
        {
          "heading": "Overview and applications",
          "paragraphs": [
            "Used with rectifier equipment, battery charging following rectification, electric lighting, electric transport vehicles, voltage adjustment and DC supplies. Detailed specifications are designed to customer requirements."
          ]
        },
        {
          "heading": "Model designation",
          "paragraphs": [
            "Z: rectifier; S: three-phase; G: dry-type; suffixes: rated capacity in KVA and voltage class in V."
          ]
        },
        {
          "heading": "Voltage combinations",
          "paragraphs": [
            "The source table has merged voltage cells listing high-side options of 380, 600, 6300 and 10000 V and low-side options of 58, 80, 132, 200, 220, 230, 300, 380, 420 and 1000 V. It does not assign an individual combination to each model."
          ]
        }
      ],
      "specifications": [],
      "models": [],
      "tables": [
        {
          "caption": "Ratings, weight, track gauge and overall dimensions",
          "columns": [
            "Model",
            "Rated capacity (KVA)",
            "High-side options (V)",
            "Low-side options (V)",
            "Weight (KG)",
            "Track gauge A (mm)",
            "Overall B×D×E (mm)"
          ],
          "rows": [
            [
              "ZSG-20",
              "20",
              "380 / 600 / 6300 / 10000",
              "58 / 80 / 132 / 200 / 220 / 230 / 300 / 380 / 420 / 1000",
              "130",
              "350",
              "700×310×550"
            ],
            [
              "ZSG-40",
              "40",
              "380 / 600 / 6300 / 10000",
              "58 / 80 / 132 / 200 / 220 / 230 / 300 / 380 / 420 / 1000",
              "290",
              "550",
              "930×450×830"
            ],
            [
              "ZSG-60",
              "60",
              "380 / 600 / 6300 / 10000",
              "58 / 80 / 132 / 200 / 220 / 230 / 300 / 380 / 420 / 1000",
              "365",
              "550",
              "990×470×850"
            ],
            [
              "ZSG-100",
              "100",
              "380 / 600 / 6300 / 10000",
              "58 / 80 / 132 / 200 / 220 / 230 / 300 / 380 / 420 / 1000",
              "430",
              "550",
              "950×395×730"
            ],
            [
              "ZSG-125",
              "125",
              "380 / 600 / 6300 / 10000",
              "58 / 80 / 132 / 200 / 220 / 230 / 300 / 380 / 420 / 1000",
              "505",
              "620",
              "1030×470×750"
            ],
            [
              "ZSG-160",
              "160",
              "380 / 600 / 6300 / 10000",
              "58 / 80 / 132 / 200 / 220 / 230 / 300 / 380 / 420 / 1000",
              "610",
              "620",
              "1010×410×900"
            ],
            [
              "ZSG-175",
              "175",
              "380 / 600 / 6300 / 10000",
              "58 / 80 / 132 / 200 / 220 / 230 / 300 / 380 / 420 / 1000",
              "670",
              "680",
              "1120×470×820"
            ],
            [
              "ZSG-250",
              "250",
              "380 / 600 / 6300 / 10000",
              "58 / 80 / 132 / 200 / 220 / 230 / 300 / 380 / 420 / 1000",
              "1030",
              "780",
              "1270×510×955"
            ],
            [
              "ZSG-400",
              "400",
              "380 / 600 / 6300 / 10000",
              "58 / 80 / 132 / 200 / 220 / 230 / 300 / 380 / 420 / 1000",
              "1380",
              "820",
              "1300×650×1150"
            ],
            [
              "ZSG-500",
              "500",
              "380 / 600 / 6300 / 10000",
              "58 / 80 / 132 / 200 / 220 / 230 / 300 / 380 / 420 / 1000",
              "1590",
              "840",
              "1350×550×1160"
            ],
            [
              "ZSG-600",
              "600",
              "380 / 600 / 6300 / 10000",
              "58 / 80 / 132 / 200 / 220 / 230 / 300 / 380 / 420 / 1000",
              "1695",
              "860",
              "1370×570×1210"
            ],
            [
              "ZSG-750",
              "750",
              "380 / 600 / 6300 / 10000",
              "58 / 80 / 132 / 200 / 220 / 230 / 300 / 380 / 420 / 1000",
              "2025",
              "980",
              "1570×710×1180"
            ],
            [
              "ZSG-800",
              "800",
              "380 / 600 / 6300 / 10000",
              "58 / 80 / 132 / 200 / 220 / 230 / 300 / 380 / 420 / 1000",
              "2600",
              "1000",
              "1550×860×1640"
            ],
            [
              "ZSG-1600",
              "1600",
              "380 / 600 / 6300 / 10000",
              "58 / 80 / 132 / 200 / 220 / 230 / 300 / 380 / 420 / 1000",
              "3600",
              "1100",
              "1750×1050×1700"
            ],
            [
              "ZSG-2000",
              "2000",
              "380 / 600 / 6300 / 10000",
              "58 / 80 / 132 / 200 / 220 / 230 / 300 / 380 / 420 / 1000",
              "5000",
              "1160",
              "1940×1150×1920"
            ],
            [
              "ZSG-2500",
              "2500",
              "380 / 600 / 6300 / 10000",
              "58 / 80 / 132 / 200 / 220 / 230 / 300 / 380 / 420 / 1000",
              "6250",
              "1240",
              "2100×1250×2130"
            ]
          ]
        }
      ],
      "notes": [
        "High- and low-voltage lists are shared merged cells in the source, not a model-by-model ratio schedule. Verify the required voltage pair at enquiry."
      ],
      "slug": "zsg-rectifier-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/zsg-rectifier-transformers.webp",
      "href": "/products/series/zsg-rectifier-transformers",
      "pdfPage": 13,
      "side": "right",
      "sheet": "/catalog/sheets/13-right.webp",
      "sheetWidth": 1007,
      "sheetHeight": 1375
    },
    {
      "id": 21,
      "title": "QZB Motor-starting Autotransformers",
      "family": "Motor-starting Autotransformers",
      "description": "Autotransformers for infrequent reduced-voltage starting of three-phase squirrel-cage induction motors, reducing the effect of starting on the supply network.",
      "sections": [
        {
          "heading": "Application",
          "paragraphs": [
            "For AC 50 Hz, rated voltage 380 V and motor power 14 kW–300 kW."
          ]
        },
        {
          "heading": "Model designation",
          "paragraphs": [
            "Q: reduced-voltage starting; Z: autotransformer; B: transformer; suffix: power of the controlled motor."
          ]
        }
      ],
      "specifications": [
        [
          "Supply frequency",
          "50 Hz"
        ],
        [
          "Rated voltage",
          "380 V"
        ],
        [
          "Controlled motor power",
          "14–300 kW"
        ]
      ],
      "models": [
        {
          "designation": "QZB-14",
          "values": [
            "14",
            "30",
            "28"
          ]
        },
        {
          "designation": "QZB-20",
          "values": [
            "20",
            "30",
            "40"
          ]
        },
        {
          "designation": "QZB-28",
          "values": [
            "28",
            "30",
            "56"
          ]
        },
        {
          "designation": "QZB-30",
          "values": [
            "30",
            "30",
            "59"
          ]
        },
        {
          "designation": "QZB-40",
          "values": [
            "40",
            "30",
            "80"
          ]
        },
        {
          "designation": "QZB-55",
          "values": [
            "55",
            "30",
            "110"
          ]
        },
        {
          "designation": "QZB-75",
          "values": [
            "75",
            "30",
            "142"
          ]
        },
        {
          "designation": "QZB-115",
          "values": [
            "115",
            "50",
            "230"
          ]
        },
        {
          "designation": "QZB-135",
          "values": [
            "135",
            "50",
            "270"
          ]
        },
        {
          "designation": "QZB-190",
          "values": [
            "190",
            "70",
            "370"
          ]
        },
        {
          "designation": "QZB-225",
          "values": [
            "225",
            "70",
            "410"
          ]
        },
        {
          "designation": "QZB-260",
          "values": [
            "260",
            "70",
            "475"
          ]
        },
        {
          "designation": "QZB-300",
          "values": [
            "300",
            "70",
            "535"
          ]
        },
        {
          "designation": "QZB-14",
          "values": [
            "230",
            "115",
            "12×20",
            "280",
            "144",
            "226"
          ]
        },
        {
          "designation": "QZB-17",
          "values": [
            "230",
            "115",
            "12×20",
            "280",
            "144",
            "226"
          ]
        },
        {
          "designation": "QZB-20",
          "values": [
            "272",
            "105",
            "8×20",
            "279",
            "138",
            "229"
          ]
        },
        {
          "designation": "QZB-22",
          "values": [
            "242",
            "115",
            "8×20",
            "179",
            "138",
            "229"
          ]
        },
        {
          "designation": "QZB-28",
          "values": [
            "284",
            "113",
            "9×20",
            "321",
            "153",
            "261"
          ]
        },
        {
          "designation": "QZB-30",
          "values": [
            "284",
            "113",
            "9×20",
            "321",
            "153",
            "261"
          ]
        },
        {
          "designation": "QZB-40",
          "values": [
            "270",
            "128",
            "12×40",
            "371",
            "168",
            "282"
          ]
        },
        {
          "designation": "QZB-45",
          "values": [
            "270",
            "128",
            "10×48",
            "371",
            "168",
            "282"
          ]
        },
        {
          "designation": "QZB-55",
          "values": [
            "248",
            "132",
            "Φ14",
            "352",
            "163",
            "280"
          ]
        },
        {
          "designation": "QZB-75",
          "values": [
            "246",
            "125",
            "Φ14",
            "371",
            "164",
            "295"
          ]
        },
        {
          "designation": "QZB-115",
          "values": [
            "312",
            "161",
            "12×18",
            "392",
            "203",
            "315"
          ]
        },
        {
          "designation": "QZB-135",
          "values": [
            "310",
            "168",
            "12×18",
            "391",
            "207",
            "314"
          ]
        }
      ],
      "tables": [
        {
          "caption": "Main technical characteristics",
          "columns": [
            "Model",
            "Controlled motor power (kW)",
            "Maximum starting time (s)",
            "Maximum operating current (A)"
          ],
          "rows": [
            [
              "QZB-14",
              "14",
              "30",
              "28"
            ],
            [
              "QZB-20",
              "20",
              "30",
              "40"
            ],
            [
              "QZB-28",
              "28",
              "30",
              "56"
            ],
            [
              "QZB-30",
              "30",
              "30",
              "59"
            ],
            [
              "QZB-40",
              "40",
              "30",
              "80"
            ],
            [
              "QZB-55",
              "55",
              "30",
              "110"
            ],
            [
              "QZB-75",
              "75",
              "30",
              "142"
            ],
            [
              "QZB-115",
              "115",
              "50",
              "230"
            ],
            [
              "QZB-135",
              "135",
              "50",
              "270"
            ],
            [
              "QZB-190",
              "190",
              "70",
              "370"
            ],
            [
              "QZB-225",
              "225",
              "70",
              "410"
            ],
            [
              "QZB-260",
              "260",
              "70",
              "475"
            ],
            [
              "QZB-300",
              "300",
              "70",
              "535"
            ]
          ]
        },
        {
          "caption": "Overall and mounting dimensions",
          "columns": [
            "Model",
            "Mounting A (mm)",
            "Mounting C (mm)",
            "Mounting hole K×J (mm)",
            "Overall A (mm)",
            "Overall D (mm)",
            "Overall E (mm)"
          ],
          "rows": [
            [
              "QZB-14",
              "230",
              "115",
              "12×20",
              "280",
              "144",
              "226"
            ],
            [
              "QZB-17",
              "230",
              "115",
              "12×20",
              "280",
              "144",
              "226"
            ],
            [
              "QZB-20",
              "272",
              "105",
              "8×20",
              "279",
              "138",
              "229"
            ],
            [
              "QZB-22",
              "242",
              "115",
              "8×20",
              "179",
              "138",
              "229"
            ],
            [
              "QZB-28",
              "284",
              "113",
              "9×20",
              "321",
              "153",
              "261"
            ],
            [
              "QZB-30",
              "284",
              "113",
              "9×20",
              "321",
              "153",
              "261"
            ],
            [
              "QZB-40",
              "270",
              "128",
              "12×40",
              "371",
              "168",
              "282"
            ],
            [
              "QZB-45",
              "270",
              "128",
              "10×48",
              "371",
              "168",
              "282"
            ],
            [
              "QZB-55",
              "248",
              "132",
              "Φ14",
              "352",
              "163",
              "280"
            ],
            [
              "QZB-75",
              "246",
              "125",
              "Φ14",
              "371",
              "164",
              "295"
            ],
            [
              "QZB-115",
              "312",
              "161",
              "12×18",
              "392",
              "203",
              "315"
            ],
            [
              "QZB-135",
              "310",
              "168",
              "12×18",
              "391",
              "207",
              "314"
            ]
          ]
        }
      ],
      "notes": [
        "Motor power values are kW, not transformer kVA. The dimension table labels both mounting and overall dimensions A; both original labels are retained. QZB-22 overall A is printed as 179 mm."
      ],
      "slug": "qzb-motor-starting-autotransformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/qzb-motor-starting-autotransformers.webp",
      "href": "/products/series/qzb-motor-starting-autotransformers",
      "pdfPage": 14,
      "side": "left",
      "sheet": "/catalog/sheets/14-left.webp",
      "sheetWidth": 1006,
      "sheetHeight": 1375
    },
    {
      "id": 22,
      "title": "SGK Integrated-magnetics Transformers",
      "family": "Integrated-magnetics Transformers",
      "description": "Transformer and reactor functions combined on a shared magnetic core for UPS, metro traction and related power conversion applications.",
      "sections": [
        {
          "heading": "Overview",
          "paragraphs": [
            "Brochure states that integrating transformer and reactor magnetics increases power density and efficiency, reduces output ripple and improves transient output response, while reducing primary inverter-switch losses and magnetic-component size and losses.",
            "Magnetic integration combines two or more discrete magnetics (DM) on one magnetic core. Coupling and parameter design support integration and miniaturization; fewer connection points reduce terminal losses in high-current circuits."
          ]
        },
        {
          "heading": "Design and performance",
          "paragraphs": [
            "Brochure states that customer-specified short-circuit impedance is available, normally 5%–30%, for isolation or autotransformer designs, single-phase or three-phase. Leakage-inductance calculation determines main and auxiliary core cross sections, auxiliary-core air gaps, temperature rise and size. A foil-winding machine is customized for double-core transformer windings."
          ]
        },
        {
          "heading": "Principle",
          "paragraphs": [
            "The principle diagram combines a discrete series inductance L and transformer T into an integrated T+L magnetic assembly; either arrangement of L relative to T is illustrated. Integrated filtering inductance with specified short-circuit impedance is offered for 1 kVA–1000 kVA."
          ]
        }
      ],
      "specifications": [
        [
          "Custom capacity range",
          "1–1000 kVA"
        ],
        [
          "Typical short-circuit impedance",
          "5%–30%"
        ]
      ],
      "models": [
        {
          "designation": "SGK-2",
          "values": [
            "3",
            "80",
            "50",
            "380",
            "615",
            "280",
            "400",
            "590",
            "14×20",
            "H"
          ]
        },
        {
          "designation": "SGK-2",
          "values": [
            "3",
            "100",
            "50",
            "400",
            "735",
            "400",
            "460",
            "580",
            "14×20",
            "H"
          ]
        }
      ],
      "tables": [
        {
          "caption": "Parameters and dimensions",
          "columns": [
            "Model",
            "Phases",
            "Rated capacity (kVA)",
            "Frequency (Hz)",
            "A (mm)",
            "B (mm)",
            "C (mm)",
            "D (mm)",
            "E (mm)",
            "Mounting hole (mm)",
            "Insulation class"
          ],
          "rows": [
            [
              "SGK-2",
              "3",
              "80",
              "50",
              "380",
              "615",
              "280",
              "400",
              "590",
              "14×20",
              "H"
            ],
            [
              "SGK-2",
              "3",
              "100",
              "50",
              "400",
              "735",
              "400",
              "460",
              "580",
              "14×20",
              "H"
            ]
          ]
        }
      ],
      "notes": [
        "Both table rows use the original designation SGK-2; capacity distinguishes the variants. Special specifications and dimensions can be manufactured to customer requirements."
      ],
      "slug": "sgk-integrated-magnetics-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/sgk-integrated-magnetics-transformers.webp",
      "href": "/products/series/sgk-integrated-magnetics-transformers",
      "pdfPage": 14,
      "side": "right",
      "sheet": "/catalog/sheets/14-right.webp",
      "sheetWidth": 1007,
      "sheetHeight": 1375
    },
    {
      "id": 23,
      "title": "USG Three-phase Power Conversion Transformers",
      "family": "Three-phase Power Conversion Transformers",
      "description": "Power transformers for three-phase UPS, EPS, regulated power supplies, frequency-conversion power supplies, inverters and rectifiers.",
      "sections": [
        {
          "heading": "Construction and performance",
          "paragraphs": [
            "Purpose-designed through application-specific development and testing. Uses high-flux electrical steel supplied by the original steel producer, high-strength temperature-resistant magnet wire, imported special high-temperature long-life insulation and inspection equipment.",
            "Brochure states 100% applicability and factory pass rate, and customer satisfaction above 95%; these are brochure claims, not independent test results. It describes compact dimensions, low noise, attractive appearance, high-temperature resistance and strong natural heat dissipation."
          ]
        }
      ],
      "specifications": [
        [
          "Input voltage",
          "AC 15–1140 V"
        ],
        [
          "Output voltage",
          "AC 100–1140 V"
        ],
        [
          "Frequency (printed under rated power)",
          "50/60 Hz"
        ],
        [
          "Power range",
          "1–315 kW"
        ],
        [
          "Cooling",
          "Natural air cooling or forced air cooling"
        ],
        [
          "Ambient temperature",
          "−5 to +40°C"
        ],
        [
          "Dielectric strength",
          "2500 V/min"
        ],
        [
          "Insulation class",
          "B/F/H"
        ]
      ],
      "models": [
        {
          "designation": "USG-3.5kVA",
          "values": [
            "270 ±2",
            "180 ±5",
            "145 ±5",
            "110 ±5",
            "75 ±2",
            "10 ±2",
            "18 ±1",
            "210 ±5",
            "300×250×250"
          ]
        },
        {
          "designation": "USG-4.0kVA",
          "values": [
            "270 ±2",
            "180 ±5",
            "150 ±5",
            "115 ±5",
            "80 ±2",
            "10 ±2",
            "18 ±1",
            "210 ±5",
            "300×260×250"
          ]
        },
        {
          "designation": "USG-5.5kVA",
          "values": [
            "300 ±2",
            "200 ±5",
            "165 ±5",
            "125 ±5",
            "85 ±2",
            "10 ±2",
            "25 ±1",
            "230 ±5",
            "330×280×270"
          ]
        },
        {
          "designation": "USG-6.0kVA",
          "values": [
            "300 ±2",
            "200 ±5",
            "170 ±5",
            "130 ±5",
            "90 ±2",
            "10 ±2",
            "25 ±1",
            "230 ±5",
            "330×290×270"
          ]
        },
        {
          "designation": "USG-8.0kVA",
          "values": [
            "328 ±2",
            "220 ±5",
            "170 ±5",
            "130 ±5",
            "90 ±2",
            "10 ±2",
            "25 ±1",
            "250 ±5",
            "360×290×290"
          ]
        },
        {
          "designation": "USG-10kVA",
          "values": [
            "360 ±2",
            "240 ±5",
            "175 ±5",
            "135 ±5",
            "95 ±2",
            "10 ±2",
            "25 ±1",
            "270 ±5",
            "390×300×310"
          ]
        },
        {
          "designation": "USG-12kVA",
          "values": [
            "360 ±2",
            "240 ±5",
            "185 ±5",
            "145 ±5",
            "105 ±2",
            "10 ±2",
            "25 ±1",
            "280 ±5",
            "390×310×320"
          ]
        },
        {
          "designation": "USG-15kVA",
          "values": [
            "385 ±2",
            "260 ±5",
            "190 ±5",
            "150 ±5",
            "110 ±2",
            "10 ±2",
            "25 ±1",
            "295 ±5",
            "415×330×335"
          ]
        },
        {
          "designation": "USG-20kVA",
          "values": [
            "410 ±2",
            "280 ±5",
            "196 ±5",
            "156 ±5",
            "116 ±2",
            "10 ±2",
            "25 ±1",
            "320 ±5",
            "440×335×360"
          ]
        },
        {
          "designation": "USG-24kVA",
          "values": [
            "470 ±2",
            "320 ±5",
            "205 ±5",
            "165 ±5",
            "125 ±2",
            "10 ±2",
            "25 ±1",
            "405 ±5",
            "500×370×450"
          ]
        },
        {
          "designation": "USG-30kVA",
          "values": [
            "445 ±2",
            "300 ±5",
            "210 ±5",
            "170 ±5",
            "130 ±2",
            "10 ±2",
            "25 ±1",
            "330 ±5",
            "480×380×370"
          ]
        },
        {
          "designation": "USG-37kVA",
          "values": [
            "470 ±2",
            "320 ±5",
            "232 ±5",
            "192 ±5",
            "152 ±2",
            "10 ±2",
            "25 ±1",
            "365 ±5",
            "500×395×410"
          ]
        },
        {
          "designation": "USG-45kVA",
          "values": [
            "470 ±2",
            "320 ±5",
            "235 ±5",
            "195 ±5",
            "155 ±2",
            "10 ±2",
            "25 ±1",
            "380 ±5",
            "500×400×420"
          ]
        },
        {
          "designation": "USG-60kVA",
          "values": [
            "500 ±2",
            "340 ±5",
            "255 ±5",
            "210 ±5",
            "165 ±2",
            "10 ±2",
            "25 ±1",
            "435 ±5",
            "540×430×480"
          ]
        },
        {
          "designation": "USG-75kVA",
          "values": [
            "540 ±2",
            "360 ±5",
            "270 ±5",
            "225 ±5",
            "180 ±2",
            "10 ±2",
            "25 ±1",
            "450 ±5",
            "540×430×480"
          ]
        },
        {
          "designation": "USG-93kVA",
          "values": [
            "570 ±2",
            "380 ±5",
            "285 ±5",
            "237 ±5",
            "192 ±2",
            "10 ±2",
            "25 ±1",
            "480 ±5",
            "570×440×520"
          ]
        },
        {
          "designation": "USG-132kVA",
          "values": [
            "650 ±2",
            "440 ±5",
            "290 ±5",
            "245 ±5",
            "200 ±2",
            "10 ±2",
            "25 ±1",
            "550 ±5",
            "670×440×560"
          ]
        },
        {
          "designation": "USG-180kVA",
          "values": [
            "700 ±2",
            "460 ±5",
            "325 ±5",
            "275 ±5",
            "225 ±2",
            "10 ±2",
            "25 ±1",
            "605 ±5",
            "705×450×610"
          ]
        }
      ],
      "tables": [
        {
          "caption": "Overall dimensions",
          "columns": [
            "Model / capacity",
            "A (mm)",
            "B (mm)",
            "C (mm)",
            "D (mm)",
            "E (mm)",
            "F (mm)",
            "G (mm)",
            "H (mm)",
            "Maximum envelope (mm)"
          ],
          "rows": [
            [
              "USG-3.5kVA",
              "270 ±2",
              "180 ±5",
              "145 ±5",
              "110 ±5",
              "75 ±2",
              "10 ±2",
              "18 ±1",
              "210 ±5",
              "300×250×250"
            ],
            [
              "USG-4.0kVA",
              "270 ±2",
              "180 ±5",
              "150 ±5",
              "115 ±5",
              "80 ±2",
              "10 ±2",
              "18 ±1",
              "210 ±5",
              "300×260×250"
            ],
            [
              "USG-5.5kVA",
              "300 ±2",
              "200 ±5",
              "165 ±5",
              "125 ±5",
              "85 ±2",
              "10 ±2",
              "25 ±1",
              "230 ±5",
              "330×280×270"
            ],
            [
              "USG-6.0kVA",
              "300 ±2",
              "200 ±5",
              "170 ±5",
              "130 ±5",
              "90 ±2",
              "10 ±2",
              "25 ±1",
              "230 ±5",
              "330×290×270"
            ],
            [
              "USG-8.0kVA",
              "328 ±2",
              "220 ±5",
              "170 ±5",
              "130 ±5",
              "90 ±2",
              "10 ±2",
              "25 ±1",
              "250 ±5",
              "360×290×290"
            ],
            [
              "USG-10kVA",
              "360 ±2",
              "240 ±5",
              "175 ±5",
              "135 ±5",
              "95 ±2",
              "10 ±2",
              "25 ±1",
              "270 ±5",
              "390×300×310"
            ],
            [
              "USG-12kVA",
              "360 ±2",
              "240 ±5",
              "185 ±5",
              "145 ±5",
              "105 ±2",
              "10 ±2",
              "25 ±1",
              "280 ±5",
              "390×310×320"
            ],
            [
              "USG-15kVA",
              "385 ±2",
              "260 ±5",
              "190 ±5",
              "150 ±5",
              "110 ±2",
              "10 ±2",
              "25 ±1",
              "295 ±5",
              "415×330×335"
            ],
            [
              "USG-20kVA",
              "410 ±2",
              "280 ±5",
              "196 ±5",
              "156 ±5",
              "116 ±2",
              "10 ±2",
              "25 ±1",
              "320 ±5",
              "440×335×360"
            ],
            [
              "USG-24kVA",
              "470 ±2",
              "320 ±5",
              "205 ±5",
              "165 ±5",
              "125 ±2",
              "10 ±2",
              "25 ±1",
              "405 ±5",
              "500×370×450"
            ],
            [
              "USG-30kVA",
              "445 ±2",
              "300 ±5",
              "210 ±5",
              "170 ±5",
              "130 ±2",
              "10 ±2",
              "25 ±1",
              "330 ±5",
              "480×380×370"
            ],
            [
              "USG-37kVA",
              "470 ±2",
              "320 ±5",
              "232 ±5",
              "192 ±5",
              "152 ±2",
              "10 ±2",
              "25 ±1",
              "365 ±5",
              "500×395×410"
            ],
            [
              "USG-45kVA",
              "470 ±2",
              "320 ±5",
              "235 ±5",
              "195 ±5",
              "155 ±2",
              "10 ±2",
              "25 ±1",
              "380 ±5",
              "500×400×420"
            ],
            [
              "USG-60kVA",
              "500 ±2",
              "340 ±5",
              "255 ±5",
              "210 ±5",
              "165 ±2",
              "10 ±2",
              "25 ±1",
              "435 ±5",
              "540×430×480"
            ],
            [
              "USG-75kVA",
              "540 ±2",
              "360 ±5",
              "270 ±5",
              "225 ±5",
              "180 ±2",
              "10 ±2",
              "25 ±1",
              "450 ±5",
              "540×430×480"
            ],
            [
              "USG-93kVA",
              "570 ±2",
              "380 ±5",
              "285 ±5",
              "237 ±5",
              "192 ±2",
              "10 ±2",
              "25 ±1",
              "480 ±5",
              "570×440×520"
            ],
            [
              "USG-132kVA",
              "650 ±2",
              "440 ±5",
              "290 ±5",
              "245 ±5",
              "200 ±2",
              "10 ±2",
              "25 ±1",
              "550 ±5",
              "670×440×560"
            ],
            [
              "USG-180kVA",
              "700 ±2",
              "460 ±5",
              "325 ±5",
              "275 ±5",
              "225 ±2",
              "10 ±2",
              "25 ±1",
              "605 ±5",
              "705×450×610"
            ]
          ]
        }
      ],
      "notes": [
        "These are transformers used with power-conversion equipment; the transformer alone does not change frequency. The source labels 50/60 Hz as rated power; the original value is retained as frequency."
      ],
      "slug": "usg-three-phase-converter-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/usg-three-phase-converter-transformers.webp",
      "href": "/products/series/usg-three-phase-converter-transformers",
      "pdfPage": 15,
      "side": "left",
      "sheet": "/catalog/sheets/15-left.webp",
      "sheetWidth": 1006,
      "sheetHeight": 1375
    },
    {
      "id": 31,
      "title": "TND Single-phase Automatic Voltage Stabilizers",
      "family": "Automatic AC Voltage Stabilizers",
      "description": "Servo-controlled high-precision automatic AC voltage stabilizers for office, test, medical, automation and domestic equipment.",
      "sections": [
        {
          "heading": "Overview",
          "paragraphs": [
            "A contact-type variable autotransformer, servo motor and automatic control circuit continuously stabilize the supply. When mains voltage or load changes, a sampling/control circuit drives the servo motor to reposition the carbon brush and bring output voltage back to its rated value.",
            "The text describes TND and TNS as updated products based on the SVC AC voltage-stabilizer series; the page heading and dimensional table are for TND single-phase units. Brochure describes an attractive exterior and economical design."
          ]
        },
        {
          "heading": "Applications",
          "paragraphs": [
            "Office equipment, test equipment, medical equipment, industrial automation equipment, household appliances, lighting systems and communications systems."
          ]
        }
      ],
      "specifications": [
        [
          "Input voltage",
          "Single-phase 160–250 V; three-phase 277–430 V, 3-phase 4-wire"
        ],
        [
          "Output voltage",
          "Single-phase 220 V and 110 V; three-phase line 380 V, phase 220 V"
        ],
        [
          "Voltage regulation accuracy",
          "Phase voltage 220 V ±3% and 110 V ±2%"
        ],
        [
          "Frequency",
          "50/60 Hz"
        ],
        [
          "Adjustment time",
          "<1 s for a 10% input-voltage change"
        ],
        [
          "Efficiency",
          ">90%"
        ],
        [
          "Overvoltage protection",
          "246 V ±4 V"
        ],
        [
          "Ambient temperature",
          "−10 to +40°C"
        ],
        [
          "Relative humidity",
          "<95%"
        ],
        [
          "Temperature rise",
          "<60°C"
        ],
        [
          "Waveform distortion",
          "No additional waveform distortion"
        ],
        [
          "Load power factor",
          "0.8"
        ],
        [
          "Dielectric withstand",
          "1500 VAC / 1 min, no flashover or breakdown"
        ],
        [
          "Insulation resistance",
          "Complete unit to earth >5 MΩ"
        ]
      ],
      "models": [
        {
          "designation": "TND-0.5",
          "values": [
            "Single-phase",
            "172×190×126"
          ]
        },
        {
          "designation": "TND-1",
          "values": [
            "Single-phase",
            "220×208×114"
          ]
        },
        {
          "designation": "TND-2",
          "values": [
            "Single-phase",
            "286×223×218"
          ]
        },
        {
          "designation": "TND-3",
          "values": [
            "Single-phase",
            "305×223×218"
          ]
        },
        {
          "designation": "TND-5",
          "values": [
            "Single-phase",
            "305×220×271"
          ]
        },
        {
          "designation": "TND-10",
          "values": [
            "Single-phase",
            "310×330×500"
          ]
        },
        {
          "designation": "TND-15",
          "values": [
            "Single-phase",
            "360×380×600"
          ]
        },
        {
          "designation": "TND-20",
          "values": [
            "Single-phase",
            "360×380×601"
          ]
        }
      ],
      "tables": [
        {
          "caption": "Overall dimensions",
          "columns": [
            "Model / rating (kVA)",
            "Phase arrangement",
            "Depth×width×height (mm)"
          ],
          "rows": [
            [
              "TND-0.5",
              "Single-phase",
              "172×190×126"
            ],
            [
              "TND-1",
              "Single-phase",
              "220×208×114"
            ],
            [
              "TND-2",
              "Single-phase",
              "286×223×218"
            ],
            [
              "TND-3",
              "Single-phase",
              "305×223×218"
            ],
            [
              "TND-5",
              "Single-phase",
              "305×220×271"
            ],
            [
              "TND-10",
              "Single-phase",
              "310×330×500"
            ],
            [
              "TND-15",
              "Single-phase",
              "360×380×600"
            ],
            [
              "TND-20",
              "Single-phase",
              "360×380×601"
            ]
          ]
        }
      ],
      "notes": [
        "Ultra-low-voltage units with 135–240 V input can be customized. The original TND-20 height is 601 mm and is retained. Mixed single/three-phase statements are retained from the source specification table."
      ],
      "slug": "tnd-single-phase-voltage-stabilizers",
      "category": "voltage-regulators",
      "categoryTitle": "Voltage Stabilizers",
      "relatedCategories": [],
      "image": "/catalog/products/tnd-single-phase-voltage-stabilizers.webp",
      "href": "/products/series/tnd-single-phase-voltage-stabilizers",
      "pdfPage": 18,
      "side": "right",
      "sheet": "/catalog/sheets/18-right.webp",
      "sheetWidth": 1007,
      "sheetHeight": 1375
    },
    {
      "id": 32,
      "title": "SVC Three-phase Automatic Voltage Stabilizers",
      "family": "Automatic AC Voltage Stabilizers",
      "description": "Three-phase servo-controlled automatic AC voltage stabilizers for industrial, commercial and institutional loads.",
      "sections": [
        {
          "heading": "Overview",
          "paragraphs": [
            "A contact-type variable autotransformer, servo motor and automatic control circuit continuously stabilize the supply. When mains voltage or load changes, a sampling/control circuit drives the servo motor to reposition the carbon brush and bring output voltage back to its rated value.",
            "Brochure states high efficiency, reliable long-duration operation, undistorted waveform, short-delay and overvoltage protection. Long-delay and undervoltage protection can be added on request.",
            "The brochure describes the series as an energy-saving design developed with reference to international products and domestic operating conditions, offering large capacity, wide regulation range, high accuracy, extensive protection, compact size, low mass and convenient operation and maintenance."
          ]
        },
        {
          "heading": "Applications",
          "paragraphs": [
            "Industrial and mining enterprises, postal and telecommunications facilities, railways, construction sites, schools, hospitals, hotels, defence and research facilities. Suitable loads include computers, precision machine tools, CNC machinery, CT equipment, precision instruments, test equipment, lifts, imported equipment and production lines."
          ]
        }
      ],
      "specifications": [
        [
          "Input voltage",
          "3-phase 280–430 V, 3-phase 4-wire"
        ],
        [
          "Output voltage",
          "3-phase line 380 V; phase 220 V"
        ],
        [
          "Voltage regulation accuracy",
          "Phase voltage 220 V ±3% and 110 V ±2%"
        ],
        [
          "Frequency",
          "50/60 Hz"
        ],
        [
          "Adjustment time",
          "<1 s for a 10% input-voltage change"
        ],
        [
          "Overvoltage protection",
          "246 V ±4 V"
        ],
        [
          "Ambient temperature",
          "−10 to +40°C"
        ],
        [
          "Temperature rise",
          "<60°C"
        ],
        [
          "Waveform distortion",
          "No additional waveform distortion"
        ],
        [
          "Load power factor",
          "0.8"
        ],
        [
          "Dielectric withstand",
          "1500 VAC / 1 min, no flashover or breakdown"
        ],
        [
          "Insulation resistance",
          "Three-phase unit to earth >2 MΩ"
        ]
      ],
      "models": [
        {
          "designation": "SVC-6kVA",
          "values": [
            "3-phase 4-wire",
            "150–250",
            "280–430",
            "220 ±2%",
            "380 ±3%",
            "9",
            "320×350×710"
          ]
        },
        {
          "designation": "SVC-9kVA",
          "values": [
            "3-phase 4-wire",
            "150–250",
            "280–430",
            "220 ±2%",
            "380 ±3%",
            "13.5",
            "320×350×710"
          ]
        },
        {
          "designation": "SVC-15kVA",
          "values": [
            "3-phase 4-wire",
            "150–250",
            "280–430",
            "220 ±2%",
            "380 ±3%",
            "22.5",
            "320×350×710"
          ]
        },
        {
          "designation": "SVC-20kVA",
          "values": [
            "3-phase 4-wire",
            "150–250",
            "280–430",
            "220 ±2%",
            "380 ±3%",
            "30",
            "460×415×810"
          ]
        },
        {
          "designation": "SVC-30kVA",
          "values": [
            "3-phase 4-wire",
            "150–250",
            "280–430",
            "220 ±2%",
            "380 ±3%",
            "40",
            "460×415×810"
          ]
        },
        {
          "designation": "SVC-50kVA",
          "values": [
            "3-phase 4-wire",
            "150–250",
            "280–430",
            "220 ±2%",
            "380 ±3%",
            "76",
            "600×550×1020"
          ]
        },
        {
          "designation": "SVC-60kVA",
          "values": [
            "3-phase 4-wire",
            "150–250",
            "280–430",
            "220 ±2%",
            "380 ±3%",
            "91",
            "600×550×1020"
          ]
        }
      ],
      "tables": [
        {
          "caption": "Ratings and dimensions",
          "columns": [
            "Model",
            "Input arrangement",
            "Input phase voltage (V)",
            "Input line voltage (V)",
            "Output phase voltage (V)",
            "Output line voltage (V)",
            "Output current (A)",
            "Overall dimensions (mm)"
          ],
          "rows": [
            [
              "SVC-6kVA",
              "3-phase 4-wire",
              "150–250",
              "280–430",
              "220 ±2%",
              "380 ±3%",
              "9",
              "320×350×710"
            ],
            [
              "SVC-9kVA",
              "3-phase 4-wire",
              "150–250",
              "280–430",
              "220 ±2%",
              "380 ±3%",
              "13.5",
              "320×350×710"
            ],
            [
              "SVC-15kVA",
              "3-phase 4-wire",
              "150–250",
              "280–430",
              "220 ±2%",
              "380 ±3%",
              "22.5",
              "320×350×710"
            ],
            [
              "SVC-20kVA",
              "3-phase 4-wire",
              "150–250",
              "280–430",
              "220 ±2%",
              "380 ±3%",
              "30",
              "460×415×810"
            ],
            [
              "SVC-30kVA",
              "3-phase 4-wire",
              "150–250",
              "280–430",
              "220 ±2%",
              "380 ±3%",
              "40",
              "460×415×810"
            ],
            [
              "SVC-50kVA",
              "3-phase 4-wire",
              "150–250",
              "280–430",
              "220 ±2%",
              "380 ±3%",
              "76",
              "600×550×1020"
            ],
            [
              "SVC-60kVA",
              "3-phase 4-wire",
              "150–250",
              "280–430",
              "220 ±2%",
              "380 ±3%",
              "91",
              "600×550×1020"
            ]
          ]
        }
      ],
      "notes": [
        "The main specification table and model table use different accuracy/input descriptions; both original statements are retained."
      ],
      "slug": "svc-three-phase-voltage-stabilizers",
      "category": "voltage-regulators",
      "categoryTitle": "Voltage Stabilizers",
      "relatedCategories": [],
      "image": "/catalog/products/svc-three-phase-voltage-stabilizers.webp",
      "href": "/products/series/svc-three-phase-voltage-stabilizers",
      "pdfPage": 19,
      "side": "left",
      "sheet": "/catalog/sheets/19-left.webp",
      "sheetWidth": 1006,
      "sheetHeight": 1375
    },
    {
      "id": 33,
      "title": "SBW High-power Compensated Voltage Stabilizers",
      "family": "Compensated Voltage Stabilizers",
      "description": "Three-phase automatic compensated power stabilizers that maintain output voltage when mains voltage or load changes.",
      "sections": [
        {
          "heading": "Overview",
          "paragraphs": [
            "Brochure states the design draws on Western European technology and offers large capacity, high efficiency, no waveform distortion and balanced voltage regulation. It accepts varied loads, momentary overload and continuous duty, with manual/automatic changeover.",
            "Protection covers overvoltage, overcurrent, phase loss, phase sequence and automatic protection for mechanical faults. The brochure describes compact size, light weight, convenient installation and reliable operation."
          ]
        },
        {
          "heading": "Model designation",
          "paragraphs": [
            "S: three-phase; B: compensated; W: voltage stabilizer; suffix: capacity. The operating-condition text also covers DBW units."
          ]
        },
        {
          "heading": "Applications",
          "paragraphs": [
            "Low-voltage distribution end users with low or widely fluctuating voltage, and equipment with substantial load changes: lifts, cranes, mixers, textile machines, printing machinery, large CNC machines, electroplating plants, stone-processing plants and other loads requiring stable voltage."
          ]
        },
        {
          "heading": "Indoor operating conditions",
          "paragraphs": [
            "Ambient temperature −15 to +40°C; altitude <1000 m; relative humidity <90%.",
            "No gases, steam, chemical deposits, dust, dirt, explosive or corrosive media that seriously affect insulation. No severe vibration or jolting at the installation site."
          ]
        }
      ],
      "specifications": [
        [
          "Input line voltage",
          "304–456 V"
        ],
        [
          "Output line voltage",
          "380 V ±5%, adjustable"
        ],
        [
          "Phase arrangement",
          "Three-phase"
        ],
        [
          "Regulation accuracy",
          "±1–5%"
        ]
      ],
      "models": [
        {
          "designation": "SBW-50",
          "values": [
            "50",
            "76",
            "304–456",
            "380 ±5%, adjustable",
            "Three-phase",
            "±1–5%",
            "800×600×1310"
          ]
        },
        {
          "designation": "SBW-80",
          "values": [
            "80",
            "121.5",
            "304–456",
            "380 ±5%, adjustable",
            "Three-phase",
            "±1–5%",
            "800×600×1310"
          ]
        },
        {
          "designation": "SBW-100",
          "values": [
            "100",
            "152",
            "304–456",
            "380 ±5%, adjustable",
            "Three-phase",
            "±1–5%",
            "800×600×1310"
          ]
        },
        {
          "designation": "SBW-150",
          "values": [
            "150",
            "228",
            "304–456",
            "380 ±5%, adjustable",
            "Three-phase",
            "±1–5%",
            "950×690×1570"
          ]
        },
        {
          "designation": "SBW-200",
          "values": [
            "200",
            "304",
            "304–456",
            "380 ±5%, adjustable",
            "Three-phase",
            "±1–5%",
            "950×690×1570"
          ]
        },
        {
          "designation": "SBW-250",
          "values": [
            "250",
            "380",
            "304–456",
            "380 ±5%, adjustable",
            "Three-phase",
            "±1–5%",
            "1060×800×1680"
          ]
        },
        {
          "designation": "SBW-300",
          "values": [
            "300",
            "456",
            "304–456",
            "380 ±5%, adjustable",
            "Three-phase",
            "±1–5%",
            "1060×800×1680"
          ]
        },
        {
          "designation": "SBW-350",
          "values": [
            "350",
            "532",
            "304–456",
            "380 ±5%, adjustable",
            "Three-phase",
            "±1–5%",
            "1120×860×1740"
          ]
        },
        {
          "designation": "SBW-400",
          "values": [
            "400",
            "608",
            "304–456",
            "380 ±5%, adjustable",
            "Three-phase",
            "±1–5%",
            "1120×860×1740"
          ]
        },
        {
          "designation": "SBW-450",
          "values": [
            "450",
            "684",
            "304–456",
            "380 ±5%, adjustable",
            "Three-phase",
            "±1–5%",
            "1220×960×1840"
          ]
        },
        {
          "designation": "SBW-500",
          "values": [
            "500",
            "760",
            "304–456",
            "380 ±5%, adjustable",
            "Three-phase",
            "±1–5%",
            "1220×960×1840"
          ]
        }
      ],
      "tables": [
        {
          "caption": "Ratings and dimensions",
          "columns": [
            "Model",
            "Rated capacity",
            "Output current",
            "Input line voltage (V)",
            "Output line voltage (V)",
            "Phases",
            "Regulation accuracy",
            "Overall dimensions"
          ],
          "rows": [
            [
              "SBW-50",
              "50",
              "76",
              "304–456",
              "380 ±5%, adjustable",
              "Three-phase",
              "±1–5%",
              "800×600×1310"
            ],
            [
              "SBW-80",
              "80",
              "121.5",
              "304–456",
              "380 ±5%, adjustable",
              "Three-phase",
              "±1–5%",
              "800×600×1310"
            ],
            [
              "SBW-100",
              "100",
              "152",
              "304–456",
              "380 ±5%, adjustable",
              "Three-phase",
              "±1–5%",
              "800×600×1310"
            ],
            [
              "SBW-150",
              "150",
              "228",
              "304–456",
              "380 ±5%, adjustable",
              "Three-phase",
              "±1–5%",
              "950×690×1570"
            ],
            [
              "SBW-200",
              "200",
              "304",
              "304–456",
              "380 ±5%, adjustable",
              "Three-phase",
              "±1–5%",
              "950×690×1570"
            ],
            [
              "SBW-250",
              "250",
              "380",
              "304–456",
              "380 ±5%, adjustable",
              "Three-phase",
              "±1–5%",
              "1060×800×1680"
            ],
            [
              "SBW-300",
              "300",
              "456",
              "304–456",
              "380 ±5%, adjustable",
              "Three-phase",
              "±1–5%",
              "1060×800×1680"
            ],
            [
              "SBW-350",
              "350",
              "532",
              "304–456",
              "380 ±5%, adjustable",
              "Three-phase",
              "±1–5%",
              "1120×860×1740"
            ],
            [
              "SBW-400",
              "400",
              "608",
              "304–456",
              "380 ±5%, adjustable",
              "Three-phase",
              "±1–5%",
              "1120×860×1740"
            ],
            [
              "SBW-450",
              "450",
              "684",
              "304–456",
              "380 ±5%, adjustable",
              "Three-phase",
              "±1–5%",
              "1220×960×1840"
            ],
            [
              "SBW-500",
              "500",
              "760",
              "304–456",
              "380 ±5%, adjustable",
              "Three-phase",
              "±1–5%",
              "1220×960×1840"
            ]
          ]
        }
      ],
      "notes": [
        "The original table does not print units in the capacity/current/dimension headings; numeric values are retained without adding unprinted units to those columns."
      ],
      "slug": "sbw-compensated-voltage-stabilizers",
      "category": "voltage-regulators",
      "categoryTitle": "Voltage Stabilizers",
      "relatedCategories": [],
      "image": "/catalog/products/sbw-compensated-voltage-stabilizers.webp",
      "href": "/products/series/sbw-compensated-voltage-stabilizers",
      "pdfPage": 19,
      "side": "right",
      "sheet": "/catalog/sheets/19-right.webp",
      "sheetWidth": 1007,
      "sheetHeight": 1375
    },
    {
      "id": 34,
      "title": "WJS DSP-controlled Static Voltage Stabilizers",
      "family": "Static Voltage Stabilizers",
      "description": "Contactless compensated AC voltage stabilization using DSP control, SCR switching and transformer compensation.",
      "sections": [
        {
          "heading": "Overview",
          "paragraphs": [
            "Developed from compensated power-stabilization equipment. High-speed DSP computation, fast AC sampling, RMS correction, voltage/current zero-crossing switching and fast voltage compensation combine metering, regulation and fault diagnosis.",
            "Main assemblies are an isolation transformer, SCR thyristor modules, DSP control core, fast voltage-regulation system and protective devices. Brochure describes a contactless, efficient, energy-saving design combining semiconductor switching and transformer technology."
          ]
        },
        {
          "heading": "Applications",
          "paragraphs": [
            "Large electromechanical and metalworking equipment, production lines, lifts, medical equipment, embroidery and textile equipment, air conditioning, broadcasting/television, domestic appliances and building lighting in industry, transport, telecommunications, defence, railway and research applications."
          ]
        },
        {
          "heading": "Product features",
          "paragraphs": [
            "Brochure states efficiency above 98% and low self-consumption; regulation accuracy ±1%; real-time high-resolution RMS voltage/current display with membrane-key operation; independent regulation of the three phases; and a wide input regulation range.",
            "Brochure states a 40 ms stabilization speed, intended for computerized automation, equipment and instruments.",
            "Protection and fault indication include phase loss, incorrect phase sequence, overtemperature, overload, overvoltage, undervoltage, short circuit and blown fuse. Output voltage, overload, over/undervoltage and response speed are presettable within rated limits.",
            "Brochure states momentary overload capability at 100% rated load; continuous operation under difficult grid/load conditions; zero-crossing switching without interrupted current or surge current; and no output-waveform distortion.",
            "No-load losses at rated voltage are stated to be below 0.5%. Bypass permits changeover between stabilized operation and direct mains supply for maintenance.",
            "The brochure links its stated low no-load losses with electricity-bill savings, but supplies no quantified customer saving or measured before/after result."
          ]
        }
      ],
      "specifications": [
        [
          "Rated capacity",
          "10–3000 kVA"
        ],
        [
          "Phase arrangement",
          "3-phase 5-wire"
        ],
        [
          "Nominal input options",
          "220 V / 380 V / 400 V / other"
        ],
        [
          "Input variation options",
          "±15% / ±20% / ±25% / ±30% / other"
        ],
        [
          "Output options",
          "220 V / 380 V / 400 V / other"
        ],
        [
          "Regulation accuracy options",
          "±1% / ±3% / ±5%, adjustable"
        ],
        [
          "Efficiency by rating",
          "10K–50K ≥95%; 50K–100K ≥97%; >100K ≥98%"
        ],
        [
          "Frequency",
          "50/60 Hz"
        ],
        [
          "Response time",
          "<10 ms"
        ],
        [
          "Stabilization time",
          "<100 ms"
        ],
        [
          "Insulation class",
          "F"
        ],
        [
          "Insulation resistance",
          "Complete unit to earth >5 MΩ"
        ],
        [
          "Dielectric withstand",
          "2000 VAC / 1 min, no flashover or breakdown"
        ],
        [
          "Output waveform",
          "No distortion; no added harmonic content"
        ],
        [
          "Momentary overload",
          "2 × rated current"
        ],
        [
          "Display",
          "LCD"
        ],
        [
          "Duty",
          "Continuous long-term operation"
        ],
        [
          "Protection",
          "Overload, overvoltage, undervoltage, short circuit, phase loss, phase sequence, overtemperature, blown fuse"
        ],
        [
          "Cooling",
          "Forced air"
        ]
      ],
      "models": [],
      "tables": [],
      "notes": [
        "Technical values are standard brochure parameters, not contractual acceptance criteria; acceptance follows the technical parameters agreed in the contract. Special requirements require agreement with the supplier.",
        "The source separately states 40 ms stabilization among features and <10 ms response / <100 ms stabilization in the parameter table; both are retained.",
        "Printed capacity formula: P = √m × I2 × U2 × 10⁻³ (kVA). P is rated output capacity; m is phase count (1 single-phase, 3 three-phase); I2 is rated output current in A; U2 is rated output voltage in V, line voltage for three-phase."
      ],
      "slug": "wjs-static-voltage-stabilizers",
      "category": "voltage-regulators",
      "categoryTitle": "Voltage Stabilizers",
      "relatedCategories": [],
      "image": "/catalog/products/wjs-static-voltage-stabilizers.webp",
      "href": "/products/series/wjs-static-voltage-stabilizers",
      "pdfPage": 20,
      "side": "left",
      "sheet": "/catalog/sheets/20-left.webp",
      "sheetWidth": 1006,
      "sheetHeight": 1375
    },
    {
      "id": 35,
      "title": "JJW Single-phase Precision AC Power Conditioners",
      "family": "Precision AC Power Conditioners",
      "description": "AC power conditioners using sine-wave energy-distribution voltage-regulation technology, combining voltage stabilization and mains purification. Brochure states high regulation accuracy, fast dynamic response, low distortion, broad load compatibility and strong electromagnetic-interference resistance.",
      "sections": [
        {
          "heading": "Applications",
          "paragraphs": [
            "Computers, precision instruments, test equipment, communications/broadcasting equipment and automatic control systems with high supply-quality requirements."
          ]
        }
      ],
      "specifications": [
        [
          "Input voltage",
          "Single-phase 185–250 V"
        ],
        [
          "Output voltage",
          "Phase 220 V ±1%"
        ],
        [
          "Frequency",
          "50 Hz ±2 Hz"
        ],
        [
          "Load regulation",
          "≤±0.5%"
        ],
        [
          "Efficiency",
          ">90%"
        ],
        [
          "Waveform distortion",
          "≤5%"
        ],
        [
          "Response time",
          "20–100 ms"
        ],
        [
          "Spike attenuation",
          "Input 500 V / 13 µs; output ≤5 V"
        ],
        [
          "Ambient temperature",
          "−10 to +40°C"
        ],
        [
          "Audible noise",
          "≤60 dB at 1 m"
        ],
        [
          "Dielectric withstand",
          "1500 VAC / 1 min, no flashover or breakdown"
        ],
        [
          "Overvoltage protection",
          "Single-phase 246 V ±4 V"
        ],
        [
          "Insulation resistance",
          "Single-phase unit to earth >5 MΩ"
        ]
      ],
      "models": [
        {
          "designation": "JJW-0.5",
          "values": [
            "Single-phase",
            "16×35×25",
            "23×41×33",
            "9",
            "1"
          ]
        },
        {
          "designation": "JJW-1",
          "values": [
            "Single-phase",
            "16×35×25",
            "23×41×33",
            "10",
            "1"
          ]
        },
        {
          "designation": "JJW-2",
          "values": [
            "Single-phase",
            "17×40×29",
            "24×45.5×36",
            "15",
            "1"
          ]
        },
        {
          "designation": "JJW-3",
          "values": [
            "Single-phase",
            "23×48×42",
            "35×57×49",
            "27",
            "1"
          ]
        },
        {
          "designation": "JJW-5",
          "values": [
            "Single-phase",
            "23×48×42",
            "35×57×49",
            "37",
            "1"
          ]
        },
        {
          "designation": "JJW-10",
          "values": [
            "Single-phase",
            "28×53×49",
            "40×61×56",
            "65",
            "1"
          ]
        },
        {
          "designation": "JJW-15",
          "values": [
            "Single-phase",
            "30×63×55",
            "41×73×63",
            "87",
            "1"
          ]
        },
        {
          "designation": "JJW-20",
          "values": [
            "Single-phase",
            "30×63×55",
            "41×73×63",
            "100",
            "1"
          ]
        },
        {
          "designation": "JJW-30",
          "values": [
            "Single-phase",
            "30×63×55",
            "74×94×70",
            "114",
            "1"
          ]
        }
      ],
      "tables": [
        {
          "caption": "Models, dimensions and mass",
          "columns": [
            "Model / rating (kVA)",
            "Phase arrangement",
            "Product L×W×H (cm)",
            "Package L×W×H (cm)",
            "Weight (kg)",
            "Units per package"
          ],
          "rows": [
            [
              "JJW-0.5",
              "Single-phase",
              "16×35×25",
              "23×41×33",
              "9",
              "1"
            ],
            [
              "JJW-1",
              "Single-phase",
              "16×35×25",
              "23×41×33",
              "10",
              "1"
            ],
            [
              "JJW-2",
              "Single-phase",
              "17×40×29",
              "24×45.5×36",
              "15",
              "1"
            ],
            [
              "JJW-3",
              "Single-phase",
              "23×48×42",
              "35×57×49",
              "27",
              "1"
            ],
            [
              "JJW-5",
              "Single-phase",
              "23×48×42",
              "35×57×49",
              "37",
              "1"
            ],
            [
              "JJW-10",
              "Single-phase",
              "28×53×49",
              "40×61×56",
              "65",
              "1"
            ],
            [
              "JJW-15",
              "Single-phase",
              "30×63×55",
              "41×73×63",
              "87",
              "1"
            ],
            [
              "JJW-20",
              "Single-phase",
              "30×63×55",
              "41×73×63",
              "100",
              "1"
            ],
            [
              "JJW-30",
              "Single-phase",
              "30×63×55",
              "74×94×70",
              "114",
              "1"
            ]
          ]
        }
      ],
      "notes": [],
      "slug": "jjw-precision-voltage-stabilizers",
      "category": "voltage-regulators",
      "categoryTitle": "Voltage Stabilizers",
      "relatedCategories": [],
      "image": "/catalog/products/jjw-precision-voltage-stabilizers.webp",
      "href": "/products/series/jjw-precision-voltage-stabilizers",
      "pdfPage": 20,
      "side": "right",
      "sheet": "/catalog/sheets/20-right.webp",
      "sheetWidth": 1007,
      "sheetHeight": 1375
    },
    {
      "id": 36,
      "title": "SJJW Three-phase Precision AC Power Conditioners",
      "family": "Precision AC Power Conditioners",
      "description": "AC power conditioners using sine-wave energy-distribution voltage-regulation technology, combining voltage stabilization and mains purification. Brochure states high regulation accuracy, fast dynamic response, low distortion, broad load compatibility and strong electromagnetic-interference resistance.",
      "sections": [
        {
          "heading": "Applications",
          "paragraphs": [
            "Computers, precision instruments, test equipment, communications/broadcasting equipment and automatic control systems with high supply-quality requirements."
          ]
        }
      ],
      "specifications": [
        [
          "Input voltage",
          "Three-phase 320–430 V, 3-phase 4-wire"
        ],
        [
          "Output voltage",
          "Phase 220 V ±1%"
        ],
        [
          "Frequency",
          "50 Hz ±2 Hz"
        ],
        [
          "Load regulation",
          "≤±0.5%"
        ],
        [
          "Efficiency",
          ">90%"
        ],
        [
          "Waveform distortion",
          "≤5%"
        ],
        [
          "Response time",
          "20–100 ms"
        ],
        [
          "Spike attenuation",
          "Input 500 V / 13 µs; output ≤5 V"
        ],
        [
          "Ambient temperature",
          "−10 to +40°C"
        ],
        [
          "Audible noise",
          "≤60 dB at 1 m"
        ],
        [
          "Dielectric withstand",
          "1500 VAC / 1 min, no flashover or breakdown"
        ],
        [
          "Overvoltage protection",
          "Three-phase 426 V ±7 V"
        ],
        [
          "Insulation resistance",
          "Three-phase unit to earth >2 MΩ"
        ]
      ],
      "models": [
        {
          "designation": "SJJW-1.5",
          "values": [
            "Three-phase",
            "32×63×57",
            "44×72×65",
            "35",
            "1"
          ]
        },
        {
          "designation": "SJJW-3",
          "values": [
            "Three-phase",
            "32×63×57",
            "44×72×65",
            "40",
            "1"
          ]
        },
        {
          "designation": "SJJW-6",
          "values": [
            "Three-phase",
            "32×63×57",
            "44×72×65",
            "52",
            "1"
          ]
        },
        {
          "designation": "SJJW-9",
          "values": [
            "Three-phase",
            "35×73×67",
            "46×82×75",
            "91",
            "1"
          ]
        },
        {
          "designation": "SJJW-15",
          "values": [
            "Three-phase",
            "35×73×67",
            "46×82×75",
            "116",
            "1"
          ]
        },
        {
          "designation": "SJJW-20",
          "values": [
            "Three-phase",
            "35×73×67",
            "46×82×75",
            "150",
            "1"
          ]
        },
        {
          "designation": "SJJW-30",
          "values": [
            "Three-phase",
            "40×73×77",
            "52×82×85",
            "195",
            "1"
          ]
        },
        {
          "designation": "SJJW-50",
          "values": [
            "Three-phase",
            "70×59×125",
            "86×90×137",
            "232",
            "1"
          ]
        },
        {
          "designation": "SJJW-80",
          "values": [
            "Three-phase",
            "85×75×130",
            "100×90×142",
            "250",
            "1"
          ]
        },
        {
          "designation": "SJJW-100",
          "values": [
            "Three-phase",
            "85×75×130",
            "100×90×142",
            "380",
            "1"
          ]
        }
      ],
      "tables": [
        {
          "caption": "Models, dimensions and mass",
          "columns": [
            "Model / rating (kVA)",
            "Phase arrangement",
            "Product L×W×H (cm)",
            "Package L×W×H (cm)",
            "Weight (kg)",
            "Units per package"
          ],
          "rows": [
            [
              "SJJW-1.5",
              "Three-phase",
              "32×63×57",
              "44×72×65",
              "35",
              "1"
            ],
            [
              "SJJW-3",
              "Three-phase",
              "32×63×57",
              "44×72×65",
              "40",
              "1"
            ],
            [
              "SJJW-6",
              "Three-phase",
              "32×63×57",
              "44×72×65",
              "52",
              "1"
            ],
            [
              "SJJW-9",
              "Three-phase",
              "35×73×67",
              "46×82×75",
              "91",
              "1"
            ],
            [
              "SJJW-15",
              "Three-phase",
              "35×73×67",
              "46×82×75",
              "116",
              "1"
            ],
            [
              "SJJW-20",
              "Three-phase",
              "35×73×67",
              "46×82×75",
              "150",
              "1"
            ],
            [
              "SJJW-30",
              "Three-phase",
              "40×73×77",
              "52×82×85",
              "195",
              "1"
            ],
            [
              "SJJW-50",
              "Three-phase",
              "70×59×125",
              "86×90×137",
              "232",
              "1"
            ],
            [
              "SJJW-80",
              "Three-phase",
              "85×75×130",
              "100×90×142",
              "250",
              "1"
            ],
            [
              "SJJW-100",
              "Three-phase",
              "85×75×130",
              "100×90×142",
              "380",
              "1"
            ]
          ]
        }
      ],
      "notes": [],
      "slug": "sjjw-three-phase-precision-stabilizers",
      "category": "voltage-regulators",
      "categoryTitle": "Voltage Stabilizers",
      "relatedCategories": [],
      "image": "/catalog/products/sjjw-three-phase-precision-stabilizers.webp",
      "href": "/products/series/sjjw-three-phase-precision-stabilizers",
      "pdfPage": 21,
      "side": "left",
      "sheet": "/catalog/sheets/21-left.webp",
      "sheetWidth": 1006,
      "sheetHeight": 1375
    },
    {
      "id": 61,
      "title": "SG Three-phase to Single-phase Transformers",
      "family": "Specialty & Test Transformers",
      "description": "Dry-type conversion transformers for dedicated single-phase industrial loads and supply balancing.",
      "sections": [
        {
          "heading": "Overview and connection descriptions",
          "paragraphs": [
            "The brochure first calls this a Scott transformer converting a three-phase input into two single-phase outputs. It states that the two single-phase loads must have equal capacity or three-phase current imbalance results. Applications are specific loads in industrial and mining enterprises, at 50/60Hz. This passage states class F heat-resistant insulation, cold-rolled grain-oriented silicon-steel laminations, and cylindrical, oval or rectangular windings.",
            "A following passage describes a special T-connected transformer converting three-phase AC into single-phase AC for large single-phase loads, improving network balance. It particularly identifies line-frequency melting supplies, with no balancing capacitors or reactors required.",
            "A further passage describes three-phase input and one single-phase output, nearly balanced input phase currents and no frequency distortion. Other technical and service requirements are described as similar to ordinary dry-type transformers, with cost above an isolation transformer. It states AC50/60Hz, working voltage below 1140V, insulation heat classes F, B and H, and manufacture to JB/T8750-1998 as a brochure claim."
          ]
        },
        {
          "heading": "Construction and enclosure features",
          "paragraphs": [
            "Cold-rolled silicon-steel laminations, varnish impregnation and oven drying are described as reducing vibration and noise. High-temperature insulating materials and winding ventilation ducts are intended to reduce coil temperature.",
            "Enclosed products are described as having casters below 100KVA, voltmeter, ammeter, cooling fan and temperature controller. Fans start above transformer temperature 80°. An overtemperature alarm is described as operating above 150° inside the transformer, provided on products above 100KVA."
          ]
        }
      ],
      "specifications": [
        [
          "Output voltage accuracy",
          "±1%"
        ],
        [
          "Voltage regulation",
          "≤1.5%"
        ],
        [
          "Output waveform distortion",
          "No waveform distortion"
        ],
        [
          "Insulation options, technical table",
          "F, H, HC (standard F)"
        ],
        [
          "Operating efficiency",
          "≥98%"
        ],
        [
          "Frequency",
          "50/60Hz"
        ],
        [
          "Overload capability",
          "1.2 times rated load for 4 hours; long-term full-load operation"
        ],
        [
          "Noise",
          "≤35dB"
        ],
        [
          "Temperature rise",
          "≤60°C"
        ],
        [
          "Insulation resistance",
          "≥150MΩ"
        ],
        [
          "Dielectric strength",
          "2500VAC/1min"
        ],
        [
          "Cooling",
          "Dry-type air cooling"
        ],
        [
          "Ambient temperature",
          "−25–+45°C"
        ],
        [
          "Humidity",
          "≤90%"
        ],
        [
          "Altitude and atmosphere",
          "≤5000m; no corrosive gases or conductive dust"
        ]
      ],
      "models": [
        {
          "designation": "SG-5",
          "values": [
            "5",
            "3Φ380V or other",
            "2Φ220V or other",
            "D/Y",
            "320",
            "210",
            "290",
            "200",
            "110",
            "10×20"
          ]
        },
        {
          "designation": "SG-6",
          "values": [
            "6",
            "3Φ380V or other",
            "2Φ220V or other",
            "D/Y",
            "340",
            "240",
            "320",
            "230",
            "130",
            "10×20"
          ]
        },
        {
          "designation": "SG-10",
          "values": [
            "10",
            "3Φ380V or other",
            "2Φ220V or other",
            "D/Y",
            "360",
            "280",
            "300",
            "250",
            "170",
            "10×20"
          ]
        },
        {
          "designation": "SG-15",
          "values": [
            "15",
            "3Φ380V or other",
            "2Φ220V or other",
            "D/Y",
            "460",
            "320",
            "340",
            "380",
            "166",
            "10×20"
          ]
        },
        {
          "designation": "SG-20",
          "values": [
            "20",
            "3Φ380V or other",
            "2Φ220V or other",
            "D/Y",
            "460",
            "340",
            "400",
            "380",
            "155",
            "10×20"
          ]
        },
        {
          "designation": "SG-25",
          "values": [
            "25",
            "3Φ380V or other",
            "2Φ220V or other",
            "D/Y",
            "410",
            "230",
            "380",
            "380",
            "180",
            "10×20"
          ]
        },
        {
          "designation": "SG-30",
          "values": [
            "30",
            "3Φ380V or other",
            "2Φ220V or other",
            "D/Y",
            "450",
            "360",
            "460",
            "380",
            "185",
            "12×20"
          ]
        },
        {
          "designation": "SG-60",
          "values": [
            "60",
            "3Φ380V or other",
            "2Φ220V or other",
            "D/Y",
            "540",
            "360",
            "520",
            "380",
            "180",
            "12×20"
          ]
        },
        {
          "designation": "SG-80",
          "values": [
            "80",
            "3Φ380V or other",
            "2Φ220V or other",
            "D/Y",
            "600",
            "400",
            "630",
            "440",
            "230",
            "12×20"
          ]
        },
        {
          "designation": "SG-100",
          "values": [
            "100",
            "3Φ380V or other",
            "2Φ220V or other",
            "D/Y",
            "600",
            "420",
            "630",
            "440",
            "240",
            "12×20"
          ]
        }
      ],
      "tables": [
        {
          "caption": "SG overall and mounting dimensions",
          "columns": [
            "Model",
            "Capacity (KVA)",
            "Input voltage",
            "Output voltage",
            "Connection group",
            "A (mm)",
            "B (mm)",
            "C (mm)",
            "D (mm)",
            "F (mm)",
            "G mounting slots (mm)"
          ],
          "rows": [
            [
              "SG-5",
              "5",
              "3Φ380V or other",
              "2Φ220V or other",
              "D/Y",
              "320",
              "210",
              "290",
              "200",
              "110",
              "10×20"
            ],
            [
              "SG-6",
              "6",
              "3Φ380V or other",
              "2Φ220V or other",
              "D/Y",
              "340",
              "240",
              "320",
              "230",
              "130",
              "10×20"
            ],
            [
              "SG-10",
              "10",
              "3Φ380V or other",
              "2Φ220V or other",
              "D/Y",
              "360",
              "280",
              "300",
              "250",
              "170",
              "10×20"
            ],
            [
              "SG-15",
              "15",
              "3Φ380V or other",
              "2Φ220V or other",
              "D/Y",
              "460",
              "320",
              "340",
              "380",
              "166",
              "10×20"
            ],
            [
              "SG-20",
              "20",
              "3Φ380V or other",
              "2Φ220V or other",
              "D/Y",
              "460",
              "340",
              "400",
              "380",
              "155",
              "10×20"
            ],
            [
              "SG-25",
              "25",
              "3Φ380V or other",
              "2Φ220V or other",
              "D/Y",
              "410",
              "230",
              "380",
              "380",
              "180",
              "10×20"
            ],
            [
              "SG-30",
              "30",
              "3Φ380V or other",
              "2Φ220V or other",
              "D/Y",
              "450",
              "360",
              "460",
              "380",
              "185",
              "12×20"
            ],
            [
              "SG-60",
              "60",
              "3Φ380V or other",
              "2Φ220V or other",
              "D/Y",
              "540",
              "360",
              "520",
              "380",
              "180",
              "12×20"
            ],
            [
              "SG-80",
              "80",
              "3Φ380V or other",
              "2Φ220V or other",
              "D/Y",
              "600",
              "400",
              "630",
              "440",
              "230",
              "12×20"
            ],
            [
              "SG-100",
              "100",
              "3Φ380V or other",
              "2Φ220V or other",
              "D/Y",
              "600",
              "420",
              "630",
              "440",
              "240",
              "12×20"
            ]
          ]
        }
      ],
      "notes": [
        "The source alternates between two single-phase outputs (Scott) and one single-phase output. Do not assume all SG models have an identical Scott connection; obtain the actual wiring diagram. The technical-table insulation options F/H/HC differ from prose F/B/H; both are retained. The output table uses 2Φ220V notation."
      ],
      "slug": "three-phase-to-single-phase-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/three-phase-to-single-phase-transformers.webp",
      "href": "/products/series/three-phase-to-single-phase-transformers",
      "pdfPage": 31,
      "side": "left",
      "sheet": "/catalog/sheets/31-left.webp",
      "sheetWidth": 1006,
      "sheetHeight": 1375
    },
    {
      "id": 62,
      "title": "SBF Triple-frequency Test Transformers",
      "family": "Specialty & Test Transformers",
      "description": "Saturated-core frequency-triplers for induced overvoltage testing, converting 50Hz to 150Hz.",
      "sections": [
        {
          "heading": "Overview",
          "paragraphs": [
            "Magnetic saturation extracts the third harmonic, described as the largest harmonic component, to supply interturn, inter-section and interlayer increased-frequency/increased-voltage tests of inductive-winding electrical products. The purpose is to assess winding insulation strength and withstand level."
          ]
        },
        {
          "heading": "Construction and magnetic principle",
          "paragraphs": [
            "A three-core five-limb structure operates above saturation flux density. In the open-delta-connected secondary, the vector sum of fundamental-frequency positive-sequence EMFs is zero; the open terminals provide in-phase 150Hz third-harmonic zero-sequence voltage.",
            "The brochure includes three-phase frequency-tripler circuit and transformer connection diagrams."
          ]
        }
      ],
      "specifications": [
        [
          "Input",
          "Three-phase 380V, 50Hz"
        ],
        [
          "Output range 1",
          "50–500V (maximum 750V), 150Hz"
        ],
        [
          "Output range 2",
          "100–1000V (maximum 1500V), 150Hz"
        ],
        [
          "Capacity range",
          "1–1000KVA"
        ],
        [
          "Waveform",
          "Sine wave; distortion below 1[%]"
        ],
        [
          "Load types",
          "Resistive, inductive or capacitive"
        ]
      ],
      "models": [
        {
          "designation": "SBF-3/500",
          "values": [
            "380",
            "0–500",
            "3"
          ]
        },
        {
          "designation": "SBF-5/500",
          "values": [
            "380",
            "0–500",
            "5"
          ]
        },
        {
          "designation": "SBF-10/500",
          "values": [
            "380",
            "0–500",
            "10"
          ]
        },
        {
          "designation": "SBF-15/500",
          "values": [
            "380",
            "0–500",
            "15"
          ]
        },
        {
          "designation": "SBF-20/500",
          "values": [
            "380",
            "0–500",
            "20"
          ]
        },
        {
          "designation": "SBF-5/1000",
          "values": [
            "380",
            "0–1000",
            "5"
          ]
        },
        {
          "designation": "SBF-10/1000",
          "values": [
            "380",
            "0–1000",
            "10"
          ]
        },
        {
          "designation": "SBF-20/1000",
          "values": [
            "380",
            "0–1000",
            "20"
          ]
        },
        {
          "designation": "SBF-50/1000",
          "values": [
            "380",
            "0–1000",
            "50"
          ]
        }
      ],
      "tables": [
        {
          "caption": "Typical SBF model parameters",
          "columns": [
            "Model",
            "Input voltage (V)",
            "Output voltage (V)",
            "Capacity (KVA)"
          ],
          "rows": [
            [
              "SBF-3/500",
              "380",
              "0–500",
              "3"
            ],
            [
              "SBF-5/500",
              "380",
              "0–500",
              "5"
            ],
            [
              "SBF-10/500",
              "380",
              "0–500",
              "10"
            ],
            [
              "SBF-15/500",
              "380",
              "0–500",
              "15"
            ],
            [
              "SBF-20/500",
              "380",
              "0–500",
              "20"
            ],
            [
              "SBF-5/1000",
              "380",
              "0–1000",
              "5"
            ],
            [
              "SBF-10/1000",
              "380",
              "0–1000",
              "10"
            ],
            [
              "SBF-20/1000",
              "380",
              "0–1000",
              "20"
            ],
            [
              "SBF-50/1000",
              "380",
              "0–1000",
              "50"
            ]
          ]
        }
      ],
      "notes": [
        "The general output ranges begin at 50V and 100V; the model table starts at 0V. Both source statements are retained. The unusual distortion notation 1[%] is retained. This is magnetic frequency tripling, not a general electronic AC frequency converter."
      ],
      "slug": "sbf-triple-frequency-test-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/sbf-triple-frequency-test-transformers.webp",
      "href": "/products/series/sbf-triple-frequency-test-transformers",
      "pdfPage": 32,
      "side": "left",
      "sheet": "/catalog/sheets/32-left.webp",
      "sheetWidth": 1006,
      "sheetHeight": 1375
    },
    {
      "id": 63,
      "title": "Low-voltage High-current Test Transformers",
      "family": "Specialty & Test Transformers",
      "description": "Dry-type current-injection transformers for current-load and temperature-rise testing.",
      "sections": [
        {
          "heading": "Overview",
          "paragraphs": [
            "The high-current dry-type transformer is also called a current booster. The associated high-current generator is purpose-built for utilities, industrial and mining enterprises to test switches, current transformers and other electrical equipment under current load and temperature-rise conditions."
          ]
        },
        {
          "heading": "Performance",
          "paragraphs": [
            "Separate or integrated construction is selected according to volume and weight. Output current is continuously adjustable with smooth rise and a wide load range. The brochure describes reliable operation, simple use and safety for high-current or temperature-rise testing."
          ]
        },
        {
          "heading": "Use and precautions",
          "paragraphs": [
            "For a newly installed or long-idle current booster, use a 1500 megohmmeter to measure winding-to-winding and winding-to-earth insulation resistance before operation. Use is permitted only at resistance not below 0.5 megohm.",
            "Both the current-boosting transformer and control console must be reliably earthed. Raise current slowly and evenly. Avoid excessive vibration during handling.",
            "Keep the regulator/brush contact surface clean; wipe with cotton yarn moistened with 90% alcohol as required.",
            "Designed for short-duration duty. Do not operate at rated capacity for extended periods, and do not exceed rated current, to avoid overheating. Store indoors in a clean, ventilated and dry space."
          ]
        }
      ],
      "specifications": [
        [
          "Pre-use insulation-resistance minimum",
          "0.5MΩ"
        ],
        [
          "Cleaning alcohol concentration",
          "90%"
        ]
      ],
      "models": [],
      "tables": [],
      "notes": [
        "The source says 1500 megohmmeter without specifying a voltage unit; this wording is retained and requires confirmation before selecting a test voltage. No model, rated test current, voltage or duration table is provided."
      ],
      "slug": "high-current-test-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/high-current-test-transformers.webp",
      "href": "/products/series/high-current-test-transformers",
      "pdfPage": 32,
      "side": "right",
      "sheet": "/catalog/sheets/32-right.webp",
      "sheetWidth": 1007,
      "sheetHeight": 1375
    },
    {
      "id": 64,
      "title": "Medium-frequency Ozone-generator Transformers",
      "family": "Specialty & Test Transformers",
      "description": "Power-transfer and impedance-matching transformers for electronic ozone discharge generators.",
      "sections": [
        {
          "heading": "Overview",
          "paragraphs": [
            "The transformer transfers power and matches the electronic power circuit output to the discharge chamber. Requirements differ from ordinary transformers because both load magnitude and load character change substantially between ignition and normal operation.",
            "A selected amount of leakage inductance is required to balance those changes and protect electronic components. Leakage inductance can also cause circuit losses and transient overvoltage during commutation, so it must be selected for the actual electronic circuit."
          ]
        },
        {
          "heading": "Technical characteristics",
          "paragraphs": [
            "The brochure describes medium-frequency generators as compact, low-power-consumption products with high ozone output."
          ]
        },
        {
          "heading": "Applications",
          "paragraphs": [
            "The brochure lists disinfection and pesticide-residue reduction for vegetables, fruit and meat in public canteens at schools, military units, government institutions and factories. It also lists ozonated-water disinfection in drinking-water plants, food plants, pharmaceutical and cosmetics plants, aquaculture farms, wastewater treatment plants, swimming pools, warehouses and residential water supplies."
          ]
        }
      ],
      "specifications": [],
      "models": [],
      "tables": [],
      "notes": [
        "No individual model or electrical-rating table is supplied. Application descriptions are brochure statements, not verified health or treatment-performance claims."
      ],
      "slug": "ozone-generator-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/ozone-generator-transformers.webp",
      "href": "/products/series/ozone-generator-transformers",
      "pdfPage": 32,
      "side": "right",
      "sheet": "/catalog/sheets/32-right.webp",
      "sheetWidth": 1007,
      "sheetHeight": 1375
    },
    {
      "id": 65,
      "title": "High-power High-frequency Transformers",
      "family": "Specialty & Test Transformers",
      "description": "High-frequency magnetic components for switched-mode and inverter power conversion.",
      "sections": [
        {
          "heading": "Applications and material selection",
          "paragraphs": [
            "Listed applications are high-power switching power supplies, inverter DC motor systems, electrolysis/electroplating supplies, laser supplies, communications supplies and high-frequency induction-heating supplies.",
            "The brochure states that silicon steel is unsuitable above 15KHz. Ferrite offers low high-frequency loss but relatively low saturation flux density, resulting in a larger/heavier core and less efficient circuit-board space use; its lower Curie temperature is also described as limiting thermal stability.",
            "Nanocrystalline material is described as combining high flux density, high permeability, low losses and temperature stability for inverter transformer cores."
          ]
        },
        {
          "heading": "Brochure material comparisons",
          "paragraphs": [
            "Nanocrystalline saturation flux density is stated as three times that of ferrite. A same-volume core is described as providing twice the output power of ferrite and greater overload capability.",
            "At 15KHz–50KHz, core loss is stated as 1/2–1/5 of ferrite loss. Permeability is described as over ten times ferrite, reducing excitation power and copper loss. The iron-based nanocrystalline alloy Curie temperature is printed 570oC, described as three times that of ferrite."
          ]
        }
      ],
      "specifications": [
        [
          "Frequency threshold discussed",
          "Above 15KHz"
        ],
        [
          "Core-loss comparison frequency range",
          "15KHz–50KHz"
        ],
        [
          "Nanocrystalline/ferrite saturation-flux comparison",
          "3 times"
        ],
        [
          "Same-volume output-power comparison",
          "2 times"
        ],
        [
          "Nanocrystalline/ferrite core-loss comparison",
          "1/2–1/5"
        ],
        [
          "Permeability comparison",
          "More than 10 times"
        ],
        [
          "Curie temperature (source typography)",
          "570oC"
        ]
      ],
      "models": [],
      "tables": [],
      "notes": [
        "Material comparisons are brochure claims and depend on actual grades and operating conditions. No individual transformer model, rating or dimensional table is supplied. The source prints the Curie-temperature notation as 570oC; this typography is retained for verification against the original technical sheet."
      ],
      "slug": "high-frequency-power-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/products/high-frequency-power-transformers.webp",
      "href": "/products/series/high-frequency-power-transformers",
      "pdfPage": 32,
      "side": "right",
      "sheet": "/catalog/sheets/32-right.webp",
      "sheetWidth": 1007,
      "sheetHeight": 1375
    },
    {
      "id": 66,
      "title": "10 kV / 20 kV Oil-Immersed Distribution Transformers",
      "family": "10 kV / 20 kV Oil-Immersed Distribution Transformers",
      "description": "Sealed oil-immersed distribution transformers for 10 kV and 20 kV networks, with corrugated tanks and project-specific winding and tapping arrangements.",
      "sections": [
        {
          "heading": "Product overview",
          "paragraphs": [
            "Sealed oil-immersed distribution transformers for 10 kV and 20 kV networks, with corrugated tanks and project-specific winding and tapping arrangements."
          ]
        },
        {
          "heading": "Configuration review",
          "paragraphs": [
            "Specify the required rated power in kVA or MVA, primary and secondary voltages, frequency, installation conditions and applicable project requirements. Consult the original technical sheets for the published design information."
          ]
        }
      ],
      "specifications": [
        [
          "Voltage class",
          "10 kV / 20 kV"
        ],
        [
          "Series designations",
          "S13, S20, S22"
        ]
      ],
      "models": [
        {
          "designation": "S11-M-315/10",
          "values": [
            "315 kVA",
            "10 kV"
          ]
        },
        {
          "designation": "S11-M-2000/10",
          "values": [
            "2000 kVA",
            "10 kV"
          ]
        },
        {
          "designation": "S13-M-630/10",
          "values": [
            "630 kVA",
            "10 kV"
          ]
        },
        {
          "designation": "S13-M-2500/10-NX3",
          "values": [
            "2500 kVA",
            "10 kV"
          ]
        },
        {
          "designation": "S20-M-2500/10-NX2",
          "values": [
            "2500 kVA",
            "10 kV"
          ]
        },
        {
          "designation": "S22-M-2500/10-NX1",
          "values": [
            "2500 kVA",
            "10 kV"
          ]
        }
      ],
      "tables": [
        {
          "caption": "Documented model designations and ratings",
          "columns": [
            "Model",
            "Rated capacity (kVA)",
            "Voltage class (kV)",
            "Scope / configuration note"
          ],
          "rows": [
            [
              "S11-M-315/10",
              "315",
              "10",
              "Brochure / model-specific documentation; confirm selected configuration"
            ],
            [
              "S11-M-2000/10",
              "2000",
              "10",
              "Brochure / model-specific documentation; confirm selected configuration"
            ],
            [
              "S13-M-630/10",
              "630",
              "10",
              "Brochure / model-specific documentation; confirm selected configuration"
            ],
            [
              "S13-M-2500/10-NX3",
              "2500",
              "10",
              "Brochure / model-specific documentation; confirm selected configuration"
            ],
            [
              "S20-M-2500/10-NX2",
              "2500",
              "10",
              "Brochure / model-specific documentation; confirm selected configuration"
            ],
            [
              "S22-M-2500/10-NX1",
              "2500",
              "10",
              "Brochure / model-specific documentation; confirm selected configuration"
            ]
          ]
        }
      ],
      "notes": [
        "Published capacity ranges describe a product family, not a confirmed model at every integer rating. Final design, availability and performance must be confirmed for the selected configuration.",
        "The contents and report title differ for the NX2 unit: the contents list S13-M-2500/10-NX2 while the report title lists S20-M-2500/10-NX2. Use the model-specific report and confirm with engineering."
      ],
      "slug": "oil-distribution-10-20kv",
      "category": "oil-immersed-transformers",
      "categoryTitle": "Oil-Immersed Transformers",
      "relatedCategories": [],
      "image": "/catalog/transformers/products/oil-distribution-10-20kv.png",
      "href": "/products/series/oil-distribution-10-20kv",
      "pdfPage": 8,
      "side": "left",
      "sheet": "/catalog/transformers/sheets/08-left.jpg",
      "sheetWidth": 1240,
      "sheetHeight": 1683,
      "additionalSheets": [
        {
          "src": "/catalog/transformers/sheets/08-right.jpg",
          "label": "Original brochure technical sheet"
        }
      ],
      "catalogSource": "transformer-product-manual"
    },
    {
      "id": 67,
      "title": "10 kV / 20 kV Amorphous Alloy Oil-Immersed Transformers",
      "family": "10 kV / 20 kV Amorphous Alloy Oil-Immersed Transformers",
      "description": "Amorphous-alloy-core, oil-immersed distribution transformers for 10 kV and 20 kV networks, designed to reduce no-load losses.",
      "sections": [
        {
          "heading": "Product overview",
          "paragraphs": [
            "Amorphous-alloy-core, oil-immersed distribution transformers for 10 kV and 20 kV networks, designed to reduce no-load losses."
          ]
        },
        {
          "heading": "Configuration review",
          "paragraphs": [
            "Specify the required rated power in kVA or MVA, primary and secondary voltages, frequency, installation conditions and applicable project requirements. Consult the original technical sheets for the published design information."
          ]
        }
      ],
      "specifications": [
        [
          "Voltage class",
          "10 kV / 20 kV"
        ],
        [
          "Series designations",
          "SH, SBH15-M-2500/10"
        ]
      ],
      "models": [
        {
          "designation": "SBH15-M-2500/10",
          "values": [
            "2500 kVA",
            "10 kV"
          ]
        }
      ],
      "tables": [
        {
          "caption": "Documented model designations and ratings",
          "columns": [
            "Model",
            "Rated capacity (kVA)",
            "Voltage class (kV)",
            "Scope / configuration note"
          ],
          "rows": [
            [
              "SBH15-M-2500/10",
              "2500",
              "10",
              "Brochure / model-specific documentation; confirm selected configuration"
            ]
          ]
        }
      ],
      "notes": [
        "Published capacity ranges describe a product family, not a confirmed model at every integer rating. Final design, availability and performance must be confirmed for the selected configuration."
      ],
      "slug": "oil-amorphous-10-20kv",
      "category": "oil-immersed-transformers",
      "categoryTitle": "Oil-Immersed Transformers",
      "relatedCategories": [],
      "image": "/catalog/transformers/products/oil-amorphous-10-20kv.png",
      "href": "/products/series/oil-amorphous-10-20kv",
      "pdfPage": 9,
      "side": "left",
      "sheet": "/catalog/transformers/sheets/09-left.jpg",
      "sheetWidth": 1240,
      "sheetHeight": 1683,
      "additionalSheets": [
        {
          "src": "/catalog/transformers/sheets/09-right.jpg",
          "label": "Original brochure technical sheet"
        }
      ],
      "catalogSource": "transformer-product-manual"
    },
    {
      "id": 68,
      "title": "35 kV Oil-Immersed Power Transformers",
      "family": "35 kV Oil-Immersed Power Transformers",
      "description": "35 kV oil-immersed power transformers for substation and industrial distribution duties. Specify voltage ratio, tapping arrangement and required load duty.",
      "sections": [
        {
          "heading": "Product overview",
          "paragraphs": [
            "35 kV oil-immersed power transformers for substation and industrial distribution duties. Specify voltage ratio, tapping arrangement and required load duty."
          ]
        },
        {
          "heading": "Configuration review",
          "paragraphs": [
            "Specify the required rated power in kVA or MVA, primary and secondary voltages, frequency, installation conditions and applicable project requirements. Consult the original technical sheets for the published design information."
          ]
        }
      ],
      "specifications": [
        [
          "Voltage class",
          "35 kV"
        ]
      ],
      "models": [
        {
          "designation": "SZ11-2500/35",
          "values": [
            "2500 kVA",
            "35 kV"
          ]
        }
      ],
      "tables": [
        {
          "caption": "Documented model designations and ratings",
          "columns": [
            "Model",
            "Rated capacity (kVA)",
            "Voltage class (kV)",
            "Scope / configuration note"
          ],
          "rows": [
            [
              "SZ11-2500/35",
              "2500",
              "35",
              "Brochure / model-specific documentation; confirm selected configuration"
            ]
          ]
        }
      ],
      "notes": [
        "Published capacity ranges describe a product family, not a confirmed model at every integer rating. Final design, availability and performance must be confirmed for the selected configuration."
      ],
      "slug": "oil-power-35kv",
      "category": "oil-immersed-transformers",
      "categoryTitle": "Oil-Immersed Transformers",
      "relatedCategories": [],
      "image": "/catalog/transformers/products/oil-power-35kv.png",
      "href": "/products/series/oil-power-35kv",
      "pdfPage": 10,
      "side": "left",
      "sheet": "/catalog/transformers/sheets/10-left.jpg",
      "sheetWidth": 1240,
      "sheetHeight": 1683,
      "additionalSheets": [],
      "catalogSource": "transformer-product-manual"
    },
    {
      "id": 69,
      "title": "66 kV Oil-Immersed Power Transformers",
      "family": "66 kV Oil-Immersed Power Transformers",
      "description": "66 kV oil-immersed power transformers with a published series capacity range of 630–63,000 kVA. Confirm the individual rating and winding configuration.",
      "sections": [
        {
          "heading": "Product overview",
          "paragraphs": [
            "66 kV oil-immersed power transformers with a published series capacity range of 630–63,000 kVA. Confirm the individual rating and winding configuration."
          ]
        },
        {
          "heading": "Configuration review",
          "paragraphs": [
            "Specify the required rated power in kVA or MVA, primary and secondary voltages, frequency, installation conditions and applicable project requirements. Consult the original technical sheets for the published design information."
          ]
        }
      ],
      "specifications": [
        [
          "Voltage class",
          "66 kV"
        ],
        [
          "Published capacity range",
          "630–63000 kVA"
        ]
      ],
      "models": [],
      "tables": [],
      "notes": [
        "Published capacity ranges describe a product family, not a confirmed model at every integer rating. Final design, availability and performance must be confirmed for the selected configuration."
      ],
      "slug": "oil-power-66kv",
      "category": "oil-immersed-transformers",
      "categoryTitle": "Oil-Immersed Transformers",
      "relatedCategories": [],
      "image": "/catalog/transformers/products/oil-power-66kv.png",
      "href": "/products/series/oil-power-66kv",
      "pdfPage": 10,
      "side": "right",
      "sheet": "/catalog/transformers/sheets/10-right.jpg",
      "sheetWidth": 1240,
      "sheetHeight": 1683,
      "additionalSheets": [],
      "catalogSource": "transformer-product-manual"
    },
    {
      "id": 70,
      "title": "110 kV Oil-Immersed Power Transformers",
      "family": "110 kV Oil-Immersed Power Transformers",
      "description": "110 kV oil-immersed power transformers for high-voltage substations and grid connections. Ratings, insulation levels and cooling arrangements are selected for the project.",
      "sections": [
        {
          "heading": "Product overview",
          "paragraphs": [
            "110 kV oil-immersed power transformers for high-voltage substations and grid connections. Ratings, insulation levels and cooling arrangements are selected for the project."
          ]
        },
        {
          "heading": "Configuration review",
          "paragraphs": [
            "Specify the required rated power in kVA or MVA, primary and secondary voltages, frequency, installation conditions and applicable project requirements. Consult the original technical sheets for the published design information."
          ]
        }
      ],
      "specifications": [
        [
          "Voltage class",
          "110 kV"
        ]
      ],
      "models": [],
      "tables": [],
      "notes": [
        "Published capacity ranges describe a product family, not a confirmed model at every integer rating. Final design, availability and performance must be confirmed for the selected configuration.",
        "The overview prints SSZ11-4000/110. Its power rating requires engineering confirmation and is not indexed as a confirmed catalogue rating."
      ],
      "slug": "oil-power-110kv",
      "category": "oil-immersed-transformers",
      "categoryTitle": "Oil-Immersed Transformers",
      "relatedCategories": [],
      "image": "/catalog/transformers/products/oil-power-110kv.png",
      "href": "/products/series/oil-power-110kv",
      "pdfPage": 11,
      "side": "left",
      "sheet": "/catalog/transformers/sheets/11-left.jpg",
      "sheetWidth": 1240,
      "sheetHeight": 1683,
      "additionalSheets": [],
      "catalogSource": "transformer-product-manual"
    },
    {
      "id": 71,
      "title": "220 kV Oil-Immersed Power Transformers",
      "family": "220 kV Oil-Immersed Power Transformers",
      "description": "220 kV oil-immersed power transformers for transmission and substation applications. The approved technical schedule defines the exact power rating and winding configuration.",
      "sections": [
        {
          "heading": "Product overview",
          "paragraphs": [
            "220 kV oil-immersed power transformers for transmission and substation applications. The approved technical schedule defines the exact power rating and winding configuration."
          ]
        },
        {
          "heading": "Configuration review",
          "paragraphs": [
            "Specify the required rated power in kVA or MVA, primary and secondary voltages, frequency, installation conditions and applicable project requirements. Consult the original technical sheets for the published design information."
          ]
        }
      ],
      "specifications": [
        [
          "Voltage class",
          "220 kV"
        ]
      ],
      "models": [],
      "tables": [],
      "notes": [
        "Published capacity ranges describe a product family, not a confirmed model at every integer rating. Final design, availability and performance must be confirmed for the selected configuration."
      ],
      "slug": "oil-power-220kv",
      "category": "oil-immersed-transformers",
      "categoryTitle": "Oil-Immersed Transformers",
      "relatedCategories": [],
      "image": "/catalog/transformers/products/oil-power-220kv.png",
      "href": "/products/series/oil-power-220kv",
      "pdfPage": 11,
      "side": "right",
      "sheet": "/catalog/transformers/sheets/11-right.jpg",
      "sheetWidth": 1240,
      "sheetHeight": 1683,
      "additionalSheets": [],
      "catalogSource": "transformer-product-manual"
    },
    {
      "id": 72,
      "title": "ZS Oil-Immersed Rectifier Transformers",
      "family": "ZS Oil-Immersed Rectifier Transformers",
      "description": "ZS oil-immersed rectifier transformers for rectifier loads and industrial power conversion. Specify the rectifier circuit, secondary voltages, currents and harmonic duty.",
      "sections": [
        {
          "heading": "Product overview",
          "paragraphs": [
            "ZS oil-immersed rectifier transformers for rectifier loads and industrial power conversion. Specify the rectifier circuit, secondary voltages, currents and harmonic duty."
          ]
        },
        {
          "heading": "Configuration review",
          "paragraphs": [
            "Specify the required rated power in kVA or MVA, primary and secondary voltages, frequency, installation conditions and applicable project requirements. Consult the original technical sheets for the published design information."
          ]
        }
      ],
      "specifications": [
        [
          "Series designations",
          "ZS"
        ]
      ],
      "models": [],
      "tables": [],
      "notes": [
        "Published capacity ranges describe a product family, not a confirmed model at every integer rating. Final design, availability and performance must be confirmed for the selected configuration."
      ],
      "slug": "zs-rectifier-transformers",
      "category": "industrial-transformers",
      "categoryTitle": "Industrial Transformers",
      "relatedCategories": [],
      "image": "/catalog/transformers/products/zs-rectifier-transformers.png",
      "href": "/products/series/zs-rectifier-transformers",
      "pdfPage": 12,
      "side": "left",
      "sheet": "/catalog/transformers/sheets/12-left.jpg",
      "sheetWidth": 1240,
      "sheetHeight": 1683,
      "additionalSheets": [],
      "catalogSource": "transformer-product-manual"
    },
    {
      "id": 73,
      "title": "DH15-M.R Single-Phase Pole-Mounted Transformers",
      "family": "DH15-M.R Single-Phase Pole-Mounted Transformers",
      "description": "DH15-M.R single-phase pole-mounted transformers for overhead distribution. The catalogue also documents a separately designated D13-M-50/10 single-phase unit.",
      "sections": [
        {
          "heading": "Product overview",
          "paragraphs": [
            "DH15-M.R single-phase pole-mounted transformers for overhead distribution. The catalogue also documents a separately designated D13-M-50/10 single-phase unit."
          ]
        },
        {
          "heading": "Configuration review",
          "paragraphs": [
            "Specify the required rated power in kVA or MVA, primary and secondary voltages, frequency, installation conditions and applicable project requirements. Consult the original technical sheets for the published design information."
          ]
        }
      ],
      "specifications": [
        [
          "Series designations",
          "DH15-M.R"
        ]
      ],
      "models": [
        {
          "designation": "D13-M-50/10",
          "values": [
            "50 kVA",
            "10 kV"
          ]
        }
      ],
      "tables": [
        {
          "caption": "Documented model designations and ratings",
          "columns": [
            "Model",
            "Rated capacity (kVA)",
            "Voltage class (kV)",
            "Scope / configuration note"
          ],
          "rows": [
            [
              "D13-M-50/10",
              "50",
              "10",
              "Separately designated single-phase unit; not a DH15-M.R model"
            ]
          ]
        }
      ],
      "notes": [
        "Published capacity ranges describe a product family, not a confirmed model at every integer rating. Final design, availability and performance must be confirmed for the selected configuration."
      ],
      "slug": "dh15-pole-mounted",
      "category": "oil-immersed-transformers",
      "categoryTitle": "Oil-Immersed Transformers",
      "relatedCategories": [],
      "image": "/catalog/transformers/products/dh15-pole-mounted.png",
      "href": "/products/series/dh15-pole-mounted",
      "pdfPage": 12,
      "side": "right",
      "sheet": "/catalog/transformers/sheets/12-right.jpg",
      "sheetWidth": 1240,
      "sheetHeight": 1683,
      "additionalSheets": [],
      "catalogSource": "transformer-product-manual"
    },
    {
      "id": 74,
      "title": "10 kV Cast-Resin Dry-Type Transformers",
      "family": "SCB Cast-Resin Dry-Type Transformers",
      "description": "10 kV cast-resin dry-type transformers for indoor distribution, commercial buildings, transport facilities and industrial loads. SCB10, SCB11, SCB12, SCB13, SCB14 and SCB18 designations are documented in the brochure and report listings.",
      "sections": [
        {
          "heading": "Product overview",
          "paragraphs": [
            "10 kV cast-resin dry-type transformers for indoor distribution, commercial buildings, transport facilities and industrial loads. SCB10, SCB11, SCB12, SCB13, SCB14 and SCB18 designations are documented in the brochure and report listings."
          ]
        },
        {
          "heading": "Configuration review",
          "paragraphs": [
            "Specify the required rated power in kVA or MVA, primary and secondary voltages, frequency, installation conditions and applicable project requirements. Consult the original technical sheets for the published design information."
          ]
        }
      ],
      "specifications": [
        [
          "Voltage class",
          "10 kV"
        ],
        [
          "Published capacity range",
          "30–2500 kVA"
        ],
        [
          "Series designations",
          "SCB12, SCB14, SCB18"
        ]
      ],
      "models": [
        {
          "designation": "SCB10-400/10",
          "values": [
            "400 kVA",
            "10 kV"
          ]
        },
        {
          "designation": "SCB10-2000/10",
          "values": [
            "2000 kVA",
            "10 kV"
          ]
        },
        {
          "designation": "SCB11-2500/10",
          "values": [
            "2500 kVA",
            "10 kV"
          ]
        },
        {
          "designation": "SCB12-2500/10",
          "values": [
            "2500 kVA",
            "10 kV"
          ]
        },
        {
          "designation": "SCB13-2500/10-NX3",
          "values": [
            "2500 kVA",
            "10 kV"
          ]
        },
        {
          "designation": "SCB14-2500/10-NX2",
          "values": [
            "2500 kVA",
            "10 kV"
          ]
        },
        {
          "designation": "SCB18-2500/10-NX1",
          "values": [
            "2500 kVA",
            "10 kV"
          ]
        }
      ],
      "tables": [
        {
          "caption": "Documented model designations and ratings",
          "columns": [
            "Model",
            "Rated capacity (kVA)",
            "Voltage class (kV)",
            "Scope / configuration note"
          ],
          "rows": [
            [
              "SCB10-400/10",
              "400",
              "10",
              "Brochure / model-specific documentation; confirm selected configuration"
            ],
            [
              "SCB10-2000/10",
              "2000",
              "10",
              "Brochure / model-specific documentation; confirm selected configuration"
            ],
            [
              "SCB11-2500/10",
              "2500",
              "10",
              "Brochure / model-specific documentation; confirm selected configuration"
            ],
            [
              "SCB12-2500/10",
              "2500",
              "10",
              "Brochure / model-specific documentation; confirm selected configuration"
            ],
            [
              "SCB13-2500/10-NX3",
              "2500",
              "10",
              "Brochure / model-specific documentation; confirm selected configuration"
            ],
            [
              "SCB14-2500/10-NX2",
              "2500",
              "10",
              "Brochure / model-specific documentation; confirm selected configuration"
            ],
            [
              "SCB18-2500/10-NX1",
              "2500",
              "10",
              "Brochure / model-specific documentation; confirm selected configuration"
            ]
          ]
        }
      ],
      "notes": [
        "Published capacity ranges describe a product family, not a confirmed model at every integer rating. Final design, availability and performance must be confirmed for the selected configuration.",
        "The documented SCB10 certificate ranges cover 30–630 kVA and 630–2,500 kVA. Intermediate capacities are within that range; no unprinted model designations are created. Other SCB series require model-specific confirmation."
      ],
      "slug": "cast-resin-dry-10kv",
      "category": "dry-type-transformers",
      "categoryTitle": "Dry-Type Transformers",
      "relatedCategories": [],
      "image": "/catalog/transformers/products/cast-resin-dry-10kv.png",
      "href": "/products/series/cast-resin-dry-10kv",
      "pdfPage": 13,
      "side": "left",
      "sheet": "/catalog/transformers/sheets/13-left.jpg",
      "sheetWidth": 1240,
      "sheetHeight": 1683,
      "additionalSheets": [
        {
          "src": "/catalog/transformers/sheets/13-right.jpg",
          "label": "Original brochure technical sheet"
        },
        {
          "src": "/catalog/transformers/sheets/54-right-certificate.jpg",
          "label": "SCB10 capacity registration certificate"
        },
        {
          "src": "/catalog/transformers/sheets/56-right-certificate.jpg",
          "label": "SCB10 capacity registration certificate"
        },
        {
          "src": "/catalog/transformers/sheets/58-right-certificate.jpg",
          "label": "SCB11 capacity registration certificate"
        },
        {
          "src": "/catalog/transformers/sheets/60-right-certificate.jpg",
          "label": "SCB12 capacity registration certificate"
        },
        {
          "src": "/catalog/transformers/sheets/62-right-certificate.jpg",
          "label": "SCB13-NX3 capacity registration certificate"
        },
        {
          "src": "/catalog/transformers/sheets/64-right-certificate.jpg",
          "label": "SCB14-NX2 capacity registration certificate"
        },
        {
          "src": "/catalog/transformers/sheets/66-right-certificate.jpg",
          "label": "SCB18-NX1 capacity registration certificate"
        }
      ],
      "catalogSource": "transformer-product-manual",
      "documentedCapacityRanges": [
        {
          "min": 30,
          "max": 630,
          "modelFamily": "SCB10"
        },
        {
          "min": 630,
          "max": 2500,
          "modelFamily": "SCB10"
        },
        {
          "min": 630,
          "max": 2500,
          "modelFamily": "SCB11"
        },
        {
          "min": 630,
          "max": 2500,
          "modelFamily": "SCB12"
        },
        {
          "min": 30,
          "max": 2500,
          "modelFamily": "SCB13-NX3"
        },
        {
          "min": 630,
          "max": 2500,
          "modelFamily": "SCB14-NX2"
        },
        {
          "min": 630,
          "max": 2500,
          "modelFamily": "SCB18-NX1"
        }
      ]
    },
    {
      "id": 75,
      "title": "10 kV Amorphous Alloy Dry-Type Transformers",
      "family": "10 kV Amorphous Alloy Dry-Type Transformers",
      "description": "10 kV amorphous-alloy dry-type transformers for low-loss power distribution, using an amorphous core and a dry insulation system.",
      "sections": [
        {
          "heading": "Product overview",
          "paragraphs": [
            "10 kV amorphous-alloy dry-type transformers for low-loss power distribution, using an amorphous core and a dry insulation system."
          ]
        },
        {
          "heading": "Configuration review",
          "paragraphs": [
            "Specify the required rated power in kVA or MVA, primary and secondary voltages, frequency, installation conditions and applicable project requirements. Consult the original technical sheets for the published design information."
          ]
        }
      ],
      "specifications": [
        [
          "Voltage class",
          "10 kV"
        ],
        [
          "Series designations",
          "SCB"
        ]
      ],
      "models": [],
      "tables": [],
      "notes": [
        "Published capacity ranges describe a product family, not a confirmed model at every integer rating. Final design, availability and performance must be confirmed for the selected configuration."
      ],
      "slug": "amorphous-dry-10kv",
      "category": "dry-type-transformers",
      "categoryTitle": "Dry-Type Transformers",
      "relatedCategories": [],
      "image": "/catalog/transformers/products/amorphous-dry-10kv.png",
      "href": "/products/series/amorphous-dry-10kv",
      "pdfPage": 14,
      "side": "left",
      "sheet": "/catalog/transformers/sheets/14-left.jpg",
      "sheetWidth": 1240,
      "sheetHeight": 1683,
      "additionalSheets": [],
      "catalogSource": "transformer-product-manual"
    },
    {
      "id": 76,
      "title": "35 kV Cast-Resin Dry-Type Transformers",
      "family": "35 kV Cast-Resin Dry-Type Transformers",
      "description": "35 kV cast-resin dry-type transformers for direct conversion to 400 V distribution or 10 kV supplies. Confirm the winding arrangement, insulation design and cooling duty.",
      "sections": [
        {
          "heading": "Product overview",
          "paragraphs": [
            "35 kV cast-resin dry-type transformers for direct conversion to 400 V distribution or 10 kV supplies. Confirm the winding arrangement, insulation design and cooling duty."
          ]
        },
        {
          "heading": "Configuration review",
          "paragraphs": [
            "Specify the required rated power in kVA or MVA, primary and secondary voltages, frequency, installation conditions and applicable project requirements. Consult the original technical sheets for the published design information."
          ]
        }
      ],
      "specifications": [
        [
          "Voltage class",
          "35 kV"
        ],
        [
          "Series designations",
          "SC(B)"
        ]
      ],
      "models": [],
      "tables": [],
      "notes": [
        "Published capacity ranges describe a product family, not a confirmed model at every integer rating. Final design, availability and performance must be confirmed for the selected configuration."
      ],
      "slug": "cast-resin-dry-35kv",
      "category": "dry-type-transformers",
      "categoryTitle": "Dry-Type Transformers",
      "relatedCategories": [],
      "image": "/catalog/transformers/products/cast-resin-dry-35kv.png",
      "href": "/products/series/cast-resin-dry-35kv",
      "pdfPage": 14,
      "side": "right",
      "sheet": "/catalog/transformers/sheets/14-right.jpg",
      "sheetWidth": 1240,
      "sheetHeight": 1683,
      "additionalSheets": [],
      "catalogSource": "transformer-product-manual"
    },
    {
      "id": 77,
      "title": "10 kV Cast-Resin Station-Service Transformers",
      "family": "10 kV Cast-Resin Station-Service Transformers",
      "description": "10 kV cast-resin station-service transformers for integration with high-voltage switchgear. The published series designation states a capacity range of 3–200 kVA.",
      "sections": [
        {
          "heading": "Product overview",
          "paragraphs": [
            "10 kV cast-resin station-service transformers for integration with high-voltage switchgear. The published series designation states a capacity range of 3–200 kVA."
          ]
        },
        {
          "heading": "Configuration review",
          "paragraphs": [
            "Specify the required rated power in kVA or MVA, primary and secondary voltages, frequency, installation conditions and applicable project requirements. Consult the original technical sheets for the published design information."
          ]
        }
      ],
      "specifications": [
        [
          "Voltage class",
          "10 kV"
        ],
        [
          "Published capacity range",
          "3–200 kVA"
        ]
      ],
      "models": [],
      "tables": [],
      "notes": [
        "Published capacity ranges describe a product family, not a confirmed model at every integer rating. Final design, availability and performance must be confirmed for the selected configuration."
      ],
      "slug": "station-dry-10kv",
      "category": "dry-type-transformers",
      "categoryTitle": "Dry-Type Transformers",
      "relatedCategories": [],
      "image": "/catalog/transformers/products/station-dry-10kv.png",
      "href": "/products/series/station-dry-10kv",
      "pdfPage": 15,
      "side": "left",
      "sheet": "/catalog/transformers/sheets/15-left.jpg",
      "sheetWidth": 1240,
      "sheetHeight": 1683,
      "additionalSheets": [],
      "catalogSource": "transformer-product-manual"
    },
    {
      "id": 78,
      "title": "35 kV Cast-Resin Station-Service Transformers",
      "family": "35 kV Cast-Resin Station-Service Transformers",
      "description": "35 kV cast-resin station-service transformers for auxiliary supplies and switchgear integration, with a published series range of 30–200 kVA.",
      "sections": [
        {
          "heading": "Product overview",
          "paragraphs": [
            "35 kV cast-resin station-service transformers for auxiliary supplies and switchgear integration, with a published series range of 30–200 kVA."
          ]
        },
        {
          "heading": "Configuration review",
          "paragraphs": [
            "Specify the required rated power in kVA or MVA, primary and secondary voltages, frequency, installation conditions and applicable project requirements. Consult the original technical sheets for the published design information."
          ]
        }
      ],
      "specifications": [
        [
          "Voltage class",
          "35 kV"
        ],
        [
          "Published capacity range",
          "30–200 kVA"
        ]
      ],
      "models": [],
      "tables": [],
      "notes": [
        "Published capacity ranges describe a product family, not a confirmed model at every integer rating. Final design, availability and performance must be confirmed for the selected configuration."
      ],
      "slug": "station-dry-35kv",
      "category": "dry-type-transformers",
      "categoryTitle": "Dry-Type Transformers",
      "relatedCategories": [],
      "image": "/catalog/transformers/products/station-dry-35kv.png",
      "href": "/products/series/station-dry-35kv",
      "pdfPage": 15,
      "side": "right",
      "sheet": "/catalog/transformers/sheets/15-right.jpg",
      "sheetWidth": 1240,
      "sheetHeight": 1683,
      "additionalSheets": [],
      "catalogSource": "transformer-product-manual"
    },
    {
      "id": 79,
      "title": "TND Automatic AC Voltage Stabilizers, 0.5–5 kVA",
      "family": "TND Automatic AC Voltage Stabilizers, 0.5–5 kVA",
      "description": "TND automatic AC voltage stabilizers in the published 0.5–5 kVA capacity group. Review input supply, output voltage and phase requirements for the selected unit.",
      "sections": [
        {
          "heading": "Product overview",
          "paragraphs": [
            "TND automatic AC voltage stabilizers in the published 0.5–5 kVA capacity group. Review input supply, output voltage and phase requirements for the selected unit."
          ]
        },
        {
          "heading": "Configuration review",
          "paragraphs": [
            "Specify the required rated power in kVA or MVA, primary and secondary voltages, frequency, installation conditions and applicable project requirements. Consult the original technical sheets for the published design information."
          ]
        }
      ],
      "specifications": [
        [
          "Published capacity range",
          "0.5–5 kVA"
        ],
        [
          "Series designations",
          "TND"
        ]
      ],
      "models": [],
      "tables": [],
      "notes": [
        "Published capacity ranges describe a product family, not a confirmed model at every integer rating. Final design, availability and performance must be confirmed for the selected configuration."
      ],
      "slug": "tnd-05-5",
      "category": "voltage-regulators",
      "categoryTitle": "Voltage Stabilizers",
      "relatedCategories": [],
      "image": "/catalog/transformers/products/tnd-05-5.png",
      "href": "/products/series/tnd-05-5",
      "pdfPage": 16,
      "side": "left",
      "sheet": "/catalog/transformers/sheets/16-left.jpg",
      "sheetWidth": 1240,
      "sheetHeight": 1683,
      "additionalSheets": [],
      "catalogSource": "transformer-product-manual"
    },
    {
      "id": 80,
      "title": "TND Automatic AC Voltage Stabilizers, 10–30 kVA",
      "family": "TND Automatic AC Voltage Stabilizers, 10–30 kVA",
      "description": "TND automatic AC voltage stabilizers in the published 10–30 kVA capacity group. Confirm the voltage configuration and continuous load rating.",
      "sections": [
        {
          "heading": "Product overview",
          "paragraphs": [
            "TND automatic AC voltage stabilizers in the published 10–30 kVA capacity group. Confirm the voltage configuration and continuous load rating."
          ]
        },
        {
          "heading": "Configuration review",
          "paragraphs": [
            "Specify the required rated power in kVA or MVA, primary and secondary voltages, frequency, installation conditions and applicable project requirements. Consult the original technical sheets for the published design information."
          ]
        }
      ],
      "specifications": [
        [
          "Published capacity range",
          "10–30 kVA"
        ],
        [
          "Series designations",
          "TND"
        ]
      ],
      "models": [],
      "tables": [],
      "notes": [
        "Published capacity ranges describe a product family, not a confirmed model at every integer rating. Final design, availability and performance must be confirmed for the selected configuration."
      ],
      "slug": "tnd-10-30",
      "category": "voltage-regulators",
      "categoryTitle": "Voltage Stabilizers",
      "relatedCategories": [],
      "image": "/catalog/transformers/products/tnd-10-30.png",
      "href": "/products/series/tnd-10-30",
      "pdfPage": 16,
      "side": "left",
      "sheet": "/catalog/transformers/sheets/16-left.jpg",
      "sheetWidth": 1240,
      "sheetHeight": 1683,
      "additionalSheets": [],
      "catalogSource": "transformer-product-manual"
    },
    {
      "id": 81,
      "title": "SVC Three-Phase AC Voltage Stabilizers, 10–150 kVA",
      "family": "SVC Three-Phase AC Voltage Stabilizers, 10–150 kVA",
      "description": "SVC three-phase compensating AC voltage stabilizers in the published 10–150 kVA capacity group.",
      "sections": [
        {
          "heading": "Product overview",
          "paragraphs": [
            "SVC three-phase compensating AC voltage stabilizers in the published 10–150 kVA capacity group."
          ]
        },
        {
          "heading": "Configuration review",
          "paragraphs": [
            "Specify the required rated power in kVA or MVA, primary and secondary voltages, frequency, installation conditions and applicable project requirements. Consult the original technical sheets for the published design information."
          ]
        }
      ],
      "specifications": [
        [
          "Published capacity range",
          "10–150 kVA"
        ],
        [
          "Series designations",
          "SVC"
        ]
      ],
      "models": [],
      "tables": [],
      "notes": [
        "Published capacity ranges describe a product family, not a confirmed model at every integer rating. Final design, availability and performance must be confirmed for the selected configuration."
      ],
      "slug": "svc-10-150",
      "category": "voltage-regulators",
      "categoryTitle": "Voltage Stabilizers",
      "relatedCategories": [],
      "image": "/catalog/transformers/products/svc-10-150.png",
      "href": "/products/series/svc-10-150",
      "pdfPage": 16,
      "side": "right",
      "sheet": "/catalog/transformers/sheets/16-right.jpg",
      "sheetWidth": 1240,
      "sheetHeight": 1683,
      "additionalSheets": [],
      "catalogSource": "transformer-product-manual"
    },
    {
      "id": 82,
      "title": "SBW High-Power AC Voltage Stabilizers, 50–800 kVA",
      "family": "SBW High-Power AC Voltage Stabilizers, 50–800 kVA",
      "description": "SBW high-power compensating AC voltage stabilizers in the published 50–800 kVA capacity group.",
      "sections": [
        {
          "heading": "Product overview",
          "paragraphs": [
            "SBW high-power compensating AC voltage stabilizers in the published 50–800 kVA capacity group."
          ]
        },
        {
          "heading": "Configuration review",
          "paragraphs": [
            "Specify the required rated power in kVA or MVA, primary and secondary voltages, frequency, installation conditions and applicable project requirements. Consult the original technical sheets for the published design information."
          ]
        }
      ],
      "specifications": [
        [
          "Published capacity range",
          "50–800 kVA"
        ],
        [
          "Series designations",
          "SBW"
        ]
      ],
      "models": [],
      "tables": [],
      "notes": [
        "Published capacity ranges describe a product family, not a confirmed model at every integer rating. Final design, availability and performance must be confirmed for the selected configuration."
      ],
      "slug": "sbw-50-800",
      "category": "voltage-regulators",
      "categoryTitle": "Voltage Stabilizers",
      "relatedCategories": [],
      "image": "/catalog/transformers/products/sbw-50-800.png",
      "href": "/products/series/sbw-50-800",
      "pdfPage": 17,
      "side": "left",
      "sheet": "/catalog/transformers/sheets/17-left.jpg",
      "sheetWidth": 1240,
      "sheetHeight": 1683,
      "additionalSheets": [],
      "catalogSource": "transformer-product-manual"
    },
    {
      "id": 83,
      "title": "SBW High-Power AC Voltage Stabilizers, 1000–2000 kVA",
      "family": "SBW High-Power AC Voltage Stabilizers, 1000–2000 kVA",
      "description": "SBW high-power compensating AC voltage stabilizers in the published 1,000–2,000 kVA capacity group.",
      "sections": [
        {
          "heading": "Product overview",
          "paragraphs": [
            "SBW high-power compensating AC voltage stabilizers in the published 1,000–2,000 kVA capacity group."
          ]
        },
        {
          "heading": "Configuration review",
          "paragraphs": [
            "Specify the required rated power in kVA or MVA, primary and secondary voltages, frequency, installation conditions and applicable project requirements. Consult the original technical sheets for the published design information."
          ]
        }
      ],
      "specifications": [
        [
          "Published capacity range",
          "1000–2000 kVA"
        ],
        [
          "Series designations",
          "SBW"
        ]
      ],
      "models": [],
      "tables": [],
      "notes": [
        "Published capacity ranges describe a product family, not a confirmed model at every integer rating. Final design, availability and performance must be confirmed for the selected configuration."
      ],
      "slug": "sbw-1000-2000",
      "category": "voltage-regulators",
      "categoryTitle": "Voltage Stabilizers",
      "relatedCategories": [],
      "image": "/catalog/transformers/products/sbw-1000-2000.png",
      "href": "/products/series/sbw-1000-2000",
      "pdfPage": 17,
      "side": "right",
      "sheet": "/catalog/transformers/sheets/17-right.jpg",
      "sheetWidth": 1240,
      "sheetHeight": 1683,
      "additionalSheets": [],
      "catalogSource": "transformer-product-manual"
    },
    {
      "id": 84,
      "slug": "solar-pv-step-up-transformers",
      "title": "Solar PV Inverter-Duty Step-Up Transformers",
      "family": "Solar PV main-power interface",
      "description": "An AC-side step-up transformer connects PV inverter output to the medium-voltage collection network. Submit the inverter specification and grid requirements for an engineered configuration; auxiliary isolation transformers serve a different circuit.",
      "category": "renewable-energy-transformers",
      "categoryTitle": "Solar & Energy Storage Transformers",
      "relatedCategories": [],
      "image": "/products/renewable/pearl-pv-compact.jpg",
      "imageSource": "https://www.pearlelectric.com/products/xnyxsbdz/gfyyzsbdz/",
      "imageCaption": "Pearl Electric compact PV substation — third-party construction reference.",
      "recordType": "engineering-configuration",
      "catalogSource": "project-engineered",
      "href": "/products/series/solar-pv-step-up-transformers",
      "pdfPage": 0,
      "side": "",
      "sheet": "",
      "sheetWidth": 0,
      "sheetHeight": 0,
      "sections": [
        {
          "heading": "Engineering scope",
          "paragraphs": [
            "An AC-side step-up transformer connects PV inverter output to the medium-voltage collection network. Submit the inverter specification and grid requirements for an engineered configuration; auxiliary isolation transformers serve a different circuit."
          ]
        },
        {
          "heading": "Model designation and performance",
          "paragraphs": [
            "This is a project-configuration entry, not a released JIADEST model datasheet. No fixed model code, capacity range, loss guarantee, impedance or certification is assigned here. The quotation and approved technical schedule define the actual offered equipment."
          ]
        }
      ],
      "specifications": [
        [
          "Application",
          "PV inverter AC output to the medium-voltage collection system"
        ],
        [
          "Rated power",
          "Specify transformer kVA / MVA, inverter apparent power and operating power factor"
        ],
        [
          "Voltage ratio",
          "Specify inverter-side AC voltage and collection-system voltage"
        ],
        [
          "Windings & vector group",
          "Specify inverter quantity, separate LV windings, earthing and required phase displacement"
        ],
        [
          "Operating duty",
          "Provide harmonic spectrum, DC-injection limits, loading profile and ambient conditions"
        ],
        [
          "Insulation & cooling",
          "Oil-immersed or dry-type construction to be reviewed for the installation"
        ]
      ],
      "models": [],
      "tables": [],
      "notes": [
        "Peer photographs and published examples are identified as industry references. They do not establish JIADEST product ratings or certification."
      ]
    },
    {
      "id": 85,
      "slug": "bess-pcs-interface-transformers",
      "title": "BESS PCS Interface Transformers",
      "family": "Battery storage power-conversion interface",
      "description": "A BESS transformer interfaces the AC side of the Power Conversion System (PCS) with the grid. Review charging and discharging duty, bidirectional power flow and converter compatibility. The battery DC circuit connects through the PCS, not directly to a conventional AC transformer.",
      "category": "renewable-energy-transformers",
      "categoryTitle": "Solar & Energy Storage Transformers",
      "relatedCategories": [],
      "image": "/products/solar-storage-pcs-substation.jpg",
      "imageSource": "https://www.pearltransformer.com/solar-pv.html",
      "imageCaption": "Pearl Electric PCS-integrated substation — third-party system reference, not a JIADEST installation.",
      "recordType": "engineering-configuration",
      "catalogSource": "project-engineered",
      "href": "/products/series/bess-pcs-interface-transformers",
      "pdfPage": 0,
      "side": "",
      "sheet": "",
      "sheetWidth": 0,
      "sheetHeight": 0,
      "sections": [
        {
          "heading": "Engineering scope",
          "paragraphs": [
            "A BESS transformer interfaces the AC side of the Power Conversion System (PCS) with the grid. Review charging and discharging duty, bidirectional power flow and converter compatibility. The battery DC circuit connects through the PCS, not directly to a conventional AC transformer."
          ]
        },
        {
          "heading": "Model designation and performance",
          "paragraphs": [
            "This is a project-configuration entry, not a released JIADEST model datasheet. No fixed model code, capacity range, loss guarantee, impedance or certification is assigned here. The quotation and approved technical schedule define the actual offered equipment."
          ]
        }
      ],
      "specifications": [
        [
          "Application",
          "PCS AC interface to the grid / medium-voltage collection system"
        ],
        [
          "Rated power",
          "Specify continuous apparent power in both charging and discharging modes"
        ],
        [
          "AC voltages",
          "Provide PCS AC voltage, grid voltage and permissible voltage variation"
        ],
        [
          "Converter data",
          "Provide harmonic spectrum, switching characteristics, earthing and isolation requirements"
        ],
        [
          "Thermal duty",
          "Provide charge/discharge cycles, overload duration, ambient temperature and altitude"
        ],
        [
          "Protection & interfaces",
          "Define transformer protection, monitoring, interlocks and PCS coordination"
        ]
      ],
      "models": [],
      "tables": [],
      "notes": [
        "Peer photographs and published examples are identified as industry references. They do not establish JIADEST product ratings or certification."
      ]
    },
    {
      "id": 86,
      "slug": "integrated-pv-bess-substations",
      "title": "Integrated PV & BESS Transformer Substations",
      "family": "Inverter / PCS + transformer + MV equipment",
      "description": "An integrated station brings the inverter or PCS, step-up transformer and medium-voltage equipment into a coordinated package. Define the supply boundary: a transformer, a transformer substation and a complete inverter/PCS station are different scopes.",
      "category": "renewable-energy-transformers",
      "categoryTitle": "Solar & Energy Storage Transformers",
      "relatedCategories": [],
      "image": "/products/renewable/pearl-pv-integrated.jpg",
      "imageSource": "https://www.pearlelectric.com/products/xnyxsbdz/gfnbsyythyzsbyq/",
      "imageCaption": "Pearl Electric integrated PV inverter / step-up substation — third-party construction reference.",
      "recordType": "engineering-configuration",
      "catalogSource": "project-engineered",
      "href": "/products/series/integrated-pv-bess-substations",
      "pdfPage": 0,
      "side": "",
      "sheet": "",
      "sheetWidth": 0,
      "sheetHeight": 0,
      "sections": [
        {
          "heading": "Engineering scope",
          "paragraphs": [
            "An integrated station brings the inverter or PCS, step-up transformer and medium-voltage equipment into a coordinated package. Define the supply boundary: a transformer, a transformer substation and a complete inverter/PCS station are different scopes."
          ]
        },
        {
          "heading": "Model designation and performance",
          "paragraphs": [
            "This is a project-configuration entry, not a released JIADEST model datasheet. No fixed model code, capacity range, loss guarantee, impedance or certification is assigned here. The quotation and approved technical schedule define the actual offered equipment."
          ]
        }
      ],
      "specifications": [
        [
          "System scope",
          "Identify whether inverter / PCS, transformer, MV switchgear and auxiliaries are included"
        ],
        [
          "Total rating",
          "Define station MVA, number of converter blocks and transformer winding arrangement"
        ],
        [
          "Network",
          "Specify MV rated voltage, insulation level, fault level and protection scheme"
        ],
        [
          "Installation",
          "Define skid-mounted or prefabricated enclosure, footprint, access and transport limits"
        ],
        [
          "Environmental design",
          "Specify ambient temperature, altitude, corrosion exposure and enclosure protection"
        ],
        [
          "Acceptance",
          "Agree drawings, applicable standards, testing, interface checks and documentation"
        ]
      ],
      "models": [],
      "tables": [],
      "notes": [
        "Peer photographs and published examples are identified as industry references. They do not establish JIADEST product ratings or certification."
      ]
    }
  ],
  "configurationCount": 3
}
