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