Failure Analysis and Prevention Measures of Under Porcelain Sets Oil-paper Capacitive Casing
Introduced the accident phenomenon in Southbridge converter station for rheological Phase A body top and left bottom of the fuel leaks, valve side of the top of the casing cover muster 2. 1 on January 31,2012. View fault trip protection recorded wave recording and analysis of the current curve, inferred fault characteristics and fault point, come to the casing of the main reasons for failure in the long-running derivatives, due to decomposition, dissolved, resulting in media deterioration and field strong distortion, and the next porcelain sets greaseproof paper condenser bushing design defects. Proposed to replace for the current use of a large amount of a good run oilpaper SF6 gas casing or tape SF6 gas casing.
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