1st Edition, March 1, 1992
Instrument Transformers Part 6: Requirements for Protective Current Transformers for Transient Performance
Superseded By: IEC 61869-2
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Description / Abstract:
This part of IEC 44 covers the requirements and tests, in addition to those in Chapter I of IEC 185, that are necessary for inductive current transformers for use with electrical protective schemes in which the prime requirement for the current transformers is the maintenance of a defined performance up to several times the rated current when the current contains an exponentially decaying d.c. component of defined time constant.