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CSA Preface

This is the first edition of CAN/CSA-C61869-4, Instrument transformers - Part 4: Additional requirements for combined transformers, which is an adoption, with Canadian deviations, of the identically titled IEC (International Electrotechnical Commission) Standard 61869-4:2013 (edition 1.0:2013). Together with CAN/CSA-C61869-1, it supersedes CAN/CSA-C60044-3, Instrument transformers - Part 3: Combined transformers, which was published in 2007.

For brevity, this Standard will be referred to as "CAN/CSA-C61869-4" throughout.

This Standard is part of the C61869 series of standards on instrument transformers, which consists of adoptions with Canadian deviations of the IEC 61869 series of standards. The IEC 61869 series restructures and updates the previous IEC 60044 series of standards. Requirements common to a variety of instrument transformer types are grouped in CAN/CSA-C61869-1; the remaining standards in the series state requirements for specific types of instrument transformers.

This Standard was reviewed for Canadian adoption by the CSA Technical Committee on Instrument Transformers, under the jurisdiction of the Strategic Steering Committee on Power Engineering and Electromagnetic Compatibility, and has been formally approved by the Technical Committee. This Standard has been approved as a National Standard of Canada by the Standards Council of Canada.