Analysis of Abnormal Dissolved Gas in 220 kV Transformer Oil by David Pentagon Method
摘要
In view of an abnormal event of dissolved gas in 220 kV transformer oil, it is inspected and analyzed from all kinds of aspects, such as data comparison between online and offline oil chromatography monitoring, absolute gas production rate analysis, and Pentagon analysis method, to find out the cause of the fault. The accuracy of David Pentagon analysis method is verified.