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BSI BS EN 61181:2007+A1:2012

Mineral oil-filled electrical equipment. Application of dissolved gas analysis (DGA) to factory tests on electrical equipment
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BSI BS EN 61181:2007+A1:2012

Mineral oil-filled electrical equipment. Application of dissolved gas analysis (DGA) to factory tests on electrical equipment

PUBLISH DATE 2012
PAGES 20
BSI BS EN 61181:2007+A1:2012

This International Standard specifies oil-sampling procedures, analysis requirements and procedures, and recommends sensitivity, repeatability and accuracy criteria for the application of dissolved gas analysis (DGA) to factory testing of new power transformers, reactors and instrument transformers filled with mineral insulating oil when DGA testing has been specified.

The most effective and useful application of DGA techniques to factory testing is during the performance of long-term tests, typically temperature-rise (heat run) and overloading tests on power transformers and reactors, also impulse tests on instrument transformers. DGA may also be valuable for over-excitation tests run over an extended period of time.

Experience with DGA results, before and after short-time dielectric tests, indicates that DGA is normally less sensitive than electrical and acoustic methods for detecting partial discharges. However, DGA will indicate when these partial discharges become harmful to the insulation and may be detected by inspection [2].

SDO BSI: British Standards Institution
Document Number EN 61181
Publication Date June 30, 2012
Language en - English
Page Count
Revision Level 1
Supercedes
Committee GEL/10
Publish Date Document Id Type View
May 31, 2007 BS EN 61181:2007 Revision
Nov. 15, 1993 BS EN 61181:1993 Revision
June 30, 2012 BS EN 61181:2007+A1:2012 Consolidated
June 1, 2012 BS EN 61181:2007:2012 Consolidated