Analysis and Treatment of Abnormal Gas Content in Insulation Oil of 500 kV Main Transformer
The gas content in insulation oil of 500 kV transformers is an important indicator for oil quality monitoring.Major equipment accidents caused by abnormal gas content in transformer insulation oil are not uncommon both domesti-cally and internationally.After a study on the components and the characteristics of dissolved gases in the oil,possible reasons for the increase of gas content and the gas intake are analyzed.Then,corresponding treatment solutions are pro-posed and the treatment process is optimized.The proposed measures are applied to treat the abnormal increase of gas content in phase B insulation oil of the 04 main transformer in Shuibuya Hydropower Plant.It shows that the measures are effective and can be useful reference for similar projects.
NETL
NSTL
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