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Why do we need to do oil analysis for oil immersed power transformers?

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Question added by Assem Alghamdi , General Manager , Modern Valve Industrial Company (MVIC)
Date Posted: 2017/07/09
MUHAMMAD RIYAS ATK
by MUHAMMAD RIYAS ATK , ELECTRICAL ENGINEER , SITE TECHNOLOGY COMPANY , QATAR

Regular testing and sampling of insulation Oil is very important in the maintenance progaram to prevent chance of failure of transformers. Oil analysis is a measure of ability of oil to withstand electrical stress without failure (Insulation), Oil with high   breakdown voltage is a good insulator. 

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