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The duval pentagon-a new complementary tool for the interpretation of dissolved gas analysis in transformers
- Source :
- IEEE Electrical Insulation Magazine. 30:9-12
- Publication Year :
- 2014
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2014.
-
Abstract
- Several methods are available for the interpretation of dissolved gas analysis (DGA) results in oil-filled electrical equipment. These methods use ratios of the five main hydrocarbon gases formed, namely H 2 , CH 4 , C 2 H 6 , C 2 H 4 , and C 2 H 2 , either 2-gas ratios, e.g., in IEEE [1] and IEC [2]; 3-gas ratios, in Duval Triangles 1 to 7 [3]; or 4-gas ratios in [4]. In this article a new method is presented using 5-gas ratios in a "pentagon" representation applicable to mineral oil-filled equipment. Carbon oxides CO and CO 2 are examined separately as in other methods.
Details
- ISSN :
- 08837554
- Volume :
- 30
- Database :
- OpenAIRE
- Journal :
- IEEE Electrical Insulation Magazine
- Accession number :
- edsair.doi...........ab9fe818653174d1b129e70b494bed89