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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
    Edition: 2012
    $316.70
    / user per year

Description of BS EN 61181:2007+A1:2012 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].



Standard NumberBS EN 61181:2007+A1:2012
TitleMineral oil-filled electrical equipment. Application of dissolved gas analysis (DGA) to factory tests on electrical equipment
StatusDefinitive
Publication Date2012-06-30
ReplacesBS EN 61181:1993
Identical National Standard OfIEC 61181:2007/AMD1:2012, EN 61181:2007/A1:2012
Amends11/30246795 DC, BS EN 61181:2007
DescriptorsInstrument transformers, Gas analysis, Insulating oils, Gas chromatography, Impregnated materials, Liquid electrical insulating materials, Electrical equipment, Oils, Oil-immersed transformers, Electrical testing, Oil-filled electrical equipment, Sensitivity, Sampling methods, Dissolved gases, Electric reactors, Transformers, Samples, Determination of content, Power transformers, Reproducibility
ICS29.040.10 Insulating oils
CommitteeGEL/10
ISBN978 0 580 75422 7
PublisherBSI
Pages20

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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