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《Electric Power Automation Equipment》 2005-07
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Acoustic emission detection method monitoring insulator pollution flashover

YANG Zhen,dong1,SHU Nai,qiu1,WANG Wen,zhi2,LIU Min3 (1. Department of Electrical Engineering,Wuhan University,Wuhan 430072,China; 2. Shenzhen Guangqian Electric Power Co., Ltd.,Shenzhen 518051,China; 3. Guangdong Institute of Water and Hydropower,Guangzhou 510610,China)  
Insulator pollution flashover is monitored using acoustic emission detection. Its principle is introduced. The monitoring device consists of supersonic transducer and reprocessing circuits. The insulator pollution flashover experiment is performed and real acoustic signals are collected,from which eigenvectors are picked up and mathematical model is built up. The eigenvectors are pro,cessed by fuzzy inference to effectively identify the flashover intensity on insulator surface,which is thus used to monitor and forewarn the flashover.
【CateGory Index】: TM855
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