IEC 61869-4 Ed. 1.0现行
Instrument transformers Part 4: Additional requirements for combined transformers
出版：International Electrotechnical Committee
专家解读视频
IEC 61869-4:2013 applies to newly-manufactured combined transformers for use with electrical measuring instruments and electrical protective devices at frequencies from 15 Hz to 100 Hz. The requirements and tests of this standard, in addition to the requirements and tests of IEC 61869-1, IEC 61869-2 and IEC 61869-3 cover current and inductive voltage transformers that are necessary for combined instrument transformers. This standard replaces IEC 60044-3: Combined transformers. This publication is to be read in conjunction with IEC 61869-1:2007, IEC 61869-2:2012 and IEC 61869-3:2011. The contents of the corrigendum of August 2014 have been included in this copy.
