{
  "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
}