IEC 60044-8-2002 Instrument transformers - Part 8: Electronic current transformers

Language: English, French
International Standard IEC 60044-8 has been prepared by IEC technical committee 38: Instrument transformers.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
Annexes A, B, C and E are for information only.
Annex D forms an integral part of this standard.
Scope
This part of IEC 60044 applies to newly manufactured electronic current transformers having an analogue voltage output or a digital output, for use with electrical measuring instruments and electrical protective devices at nominal frequencies from 15 Hz to 100 Hz.
NOTE Additional requirements due to the bandwidth are considered. The accuracy requirements on harmonics are given in annex D.
Clause 12 covers the accuracy requirements that are necessary for electronic current transformers for use with electrical measuring instruments.
Clause 13 covers the accuracy requirements that are necessary for electronic current transformers for use with electrical protective relays, and particularly for forms of protection in which the prime requirement is to maintain the accuracy up to several times the rated current. If required, the transient accuracy of an electronic current transformer during fault is also given in this clause.