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Reason Analysis of the Spark Gap Self-trigger of Series Compensation Capacitor Device
Author(s): 
Pages: 43-47
Year: Issue:  5
Journal: Guangxi Electric Power

Keyword:  串联补偿电容装置火花间隙自触发击穿特性试验;
Abstract: 分析查找“4·10”多个串联补偿电容装置火花间隙自触发原因.通过对XLSK-20PL强制触发型火花间隙装置进行触发间隙自放电电压测试、均压电容参数测试和火花间隙击穿特性测试,发现石墨电极表面存在鸟粪等污物是火花间隙自触发的根本原因.火花间隙击穿特性测试结果显示,当石墨电极表面有尖端、水珠或污秽物等时,火花间隙的主间隙击穿电压分散性很大,交流击穿电压最低约为正常值的65.0%.提出了加强火花间隙运行维护等改进措施.
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