Transformers and reactors

  • Power transformers
  • Safety of transformers and reactors
    • IEC 61558-1:2017
      Safety of transformers, reactors, power supply units and combination thereof - Part 1: General requirements and tests
    • IEC 61558-2-4 :2021
      Safety of transformers, reactors, power supply units and combination thereof - Part 2-4: Particular requirements and tests for isolating transformers and power supply units incorporating isolating transformers for general applications
    • IEC 61558-2-10 :2014
      Safety of transformers, reactors, power supply units and combination thereof - Part 2-10: Particular requirements and tests for separating transformers with high insulation level and separating transformers with output voltages exceeding 1000V
    • IEC 61558-2-20 :2010
      IEC 61558-2-20: 2022
      afety of transformers, reactors, power supply units and combination thereof - Part 2-20: Particular requirements and tests for small reactors
  • Oil-related standards
    • IEC-60944
      Guide for the maintenance of silicone transformer liquids
    • IEC-60567
      Oil-filled electrical equipment - sampling if gases and of oil for analysis of free and dissolved gases - guidance
    • IEC-60475
      Method of sampling liquid dielectrics
    • IEC-60422
      Mineral insulating oils in electrical equipment: supervision and maintenance guide
       
  • Converter transformers
  • Instrument transformers
  • Reactors
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