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Published Article / ENY-ARTICLE-2012-329

LONG-TERM STUDY OF CHANGES OF PHYSICO-CHEMICAL PARAMETERS OF TRANSFORMER OILS

Jaroszewski, M (Wrocław University of Technology) ; Pietruszewicz, M (Wrocław University of Technology)

2012-05-18

Abstract: The average age of transformers in service is increasing and approaching the end of design life. Hence there is an increasing need to assess the condition of transformers. The utilities currently use a number of diagnostic techniques to assess the insulation condition of aged transformers. Among them physic-chemical analysis of transformer oil are frequently used. The article presents the results of many years of routine laboratory testing of oil transformers operated in the EnergiaPro energy company. Oil testing included measurements of total acidity, water content, breakdown voltage, resistivity, tgδ.

Keyword(s): transformer ; mineral oil ; transformer oli ; insulation oil ; liquid insulation ; diagnostic ; oil analysis ; physico-chemical parameters ; water content ; loss factor ; total acidity ; resistivity ; breakdown voltage
Note: International Colloquium Transformer Research and Asset Management Dubrovnik, Croatia, May 16 – 18, 2012


Fulltext : http://zet10.ipee.pwr.wroc.pl/record/416/files/

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Record created 2012-05-18, last modified 2012-05-18

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