IEC 60989:1991
Separating transformers, autotransformers, variable transformers and reactors

Standard No.

IEC 60989:1991

Release Date

1991

Published By

International Electrotechnical Commission (IEC)

Latest

IEC 60989:1991

Replace By

IEC 61558-1:1997 IEC 61558-2-1:1997 IEC 61558-2-14:2012 IEC 61558-2-10:2014

Scope

Establishes safety requirements for transformers and reactors having a rated supply voltage not exceeding 1 000 V a.c., a rated frequency not exceeding 500 Hz, a rated no-load or load output voltage not exceeding 15 kV and a rated output not exceeding 5

IEC 60989:1991 history

• 1991 IEC 60989:1991 Separating transformers, autotransformers, variable transformers and reactors

IEC 60989:1991 Separating transformers, autotransformers, variable transformers and reactors was changed to IEC 61558-1:1997 Safety of power transformers, power supply units and similar - Part 1: General requirements and tests.

IEC 60989:1991 Separating transformers, autotransformers, variable transformers and reactors was changed to IEC 61558-2-1:1997 Safety of power transformers, power supply units and similar - Part 2: Particular requirements for separating transformers for general use.

IEC 60989:1991 Separating transformers, autotransformers, variable transformers and reactors was changed to IEC 61558-2-14:2012 Safety of transformers, reactors, power supply units and combinations thereof - Part 2-14: Particular requirements and test for variable transformers and power supply units incorporating variable transformers.

IEC 60989:1991 Separating transformers, autotransformers, variable transformers and reactors was changed to IEC 61558-2-10:2014 Safety of transformers, reactors, power supply units and combinations thereof - Part 2-10: Particular requirements and tests for separating transformers with high insulation level and separating transformers with output voltages exceeding 1000 V.