Historical
IEC 60044-1 Ed. 1.2 b:2003
Instrument transformers - Part 1: Current transformers
Applies to newly manufactured current transformers for use with electrical measuring instruments and electrical protective devices at frequencies from 15 Hz to 100 Hz. Applies basically to transformers with separate windings, but also to autotransformers.
Content Provider
International Electrotechnical Commission [iec]
