变电站220千伏开关三相不一致保护优化探讨  

The Investigation on Protecting Optimization of Three-phase Inconformity of 220kV Switch for a substation

作　　者：陈其菲 CHEN Qi-fei(Meizhou Power Supply Bureau,Meizhou 514400,China)

机构地区：[1]广东电网有限责任公司梅州供电局,广东梅州514400

出　　处：《电气开关》2022年第5期1-3,9,共4页Electric Switchgear

摘　　要：在实际运行中经常出现因开关本体三相不一致保护误动作问题造成的开关三相跳闸状况发生。本文介绍了开关本体三相不一致保护的原理,从多方面分析了三相不一致保护误动的典型原因,并针对性地提出了相应的改进措施,实际工作证明,经过优化改进后有效避免了开关三相不一致保护误动造成的开关异常动作,具有一定推广价值。The paper presents the principle of three-phase inconformity protection of the switch body and analyzes the typical cause of three-phase inconformity malfunction and puts forward improved measures.Practice work has proved that abnormal switch action caused by switch three-phase inconformity protection malfunction has been effectively avoided after optimization improvement which has a certain commerical value.

关 键 词：开关 分相操作 三相不一致 保护误动作 优化 

分 类 号：TM63[电气工程—电力系统及自动化]