GCB失灵保护动作逻辑探讨  

The Analysis About the Action Logic for Generator Circuit Breaker Failure Protection

作　　者：李文友 何能全 

机构地区：[1]雅砻江流域水电开发有限公司,四川成都610051

出　　处：《工业技术创新》2015年第2期196-198,共3页Industrial Technology Innovation

摘　　要：水电厂大容量水轮发电机组通常装设有发电机出口断路器(GCB),由于传统上发电机出口断路器应用较少,对发电机出口断路器的失灵保护动作逻辑及整定,业界目前仍没有一致意见。本文对目前常用的GCB失灵保护动作逻辑进行了分析,指出了其中存在的拒动或误动问题,并提出了增加电流突变量启动元件的优化逻辑,以提高其可靠性。The large capacity turbine generator unit of hydropower plant usually installed with the generator circuit breaker, As the generator circuit breaker is rarely used, The industry is still no consensus about Generator breaker failure protection action logic and setting. This article analyzed the most commonly used GCB failure protection action unwanted operation with it, and proposed optimi to improve its reliability logic, pointed out the problems of failure to operate or zed logic to add Current fault starting component in order

关 键 词：发电机出口断路器 失灵保护 电流元件 电流突变量 

分 类 号：TM561[电气工程—电器]