Overview of Transformer Oil Insulation Test Methods
Transformer oil plays a crucial role in the safe and stable operation of transformers.It can not only cool them but also provide insulation.Therefore,monitoring the quality of transformer oil can effectively reflect the operating status of transformers.This article introduces the principles and methods of four tests:transformer oil medium loss test,transformer oil micro water analysis,transformer oil acid value test,and dissolved gas analysis in transformer oil.The changes in transformer oil quality are comprehensively detected from four aspects:dielectric loss,moisture,acid value,and characteristic gas content.Then,the operation of the transformer is pre diagnosed.Through case analysis and based on facts,the significance and importance of understanding and mastering transformer oil insulation test are explained.
transformer oildielectric loss testmicro water analysisacid value testdissolved gas in oil
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