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IEEE C57.113

2010 Edition, June 17, 2010

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Recommended Practice for Partial Discharge Measurement in Liquid-Filled Power Transformers and Shunt Reactors

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Description / Abstract:

This recommended practice describes the test procedure for the detection and measurement by the wideband apparent charge method of partial discharges (PDs) occurring in liquid-filled power transformers and shunt reactors during dielectric tests, where applicable.


PD measurements in transformers and shunt reactors should preferably be made on the basis of measurement of the apparent charge. Relevant measuring systems are classified as narrowband or wideband systems. Both systems are recognized and widely used. Without giving preference to one or the other, it is the object of this document to describe the wideband method. General principles of PD measurements, including the narrowband method, are covered in IEC 60270 and IEC 60076-3 [B71].1, 2

1 Information on references can be found in Clause 2.

2 The numbers in brackets correspond to those of the bibliography in Annex H.