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.
WITHDRAWN
IEC 60044-3:2002 ED2
PUBLISHED
IEC 61869-4:2013 ED1
60.60
Standard published
Nov 19, 2013
PUBLISHED
IEC 61869-4:2013/COR1:2014 ED1