调相机站用电循环水系统馈线开关越级跳闸分析  

Analysis of Override Tripping of Circulating Water System Feeder Switch of Synchronous Compensator Station Power

作　　者：冯辉 俞晓盛 邓凯 何茂慧 杜晓舟 FENG Hui;YU Xiaosheng;DENG Kai;HE Maohui;DU Xiaozhou(Maintenance Branch Company,State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing 211100,China)

机构地区：[1]国网江苏省电力有限公司检修分公司,江苏南京211100

出　　处：《电工技术》2021年第24期168-169,172,共3页Electric Engineering

摘　　要：某特高压换流站发生多次站用电切换导致调相机站用电循环水系统馈线开关越级跳闸的事故。介绍循环水泵受电系统及事故发生详细经过,分析馈线开关越级跳闸的原因,提出相应解决措施,有效提高调相机循环水泵运行寿命及可靠性,消除调相机运行风险及重大隐患。The feeder switch of electric circulating water system in a UHV converter station tripped over the level due to multiple station power switching.The power receiving system of the circulating water pump and the detailed experience of the accident are introduced,the cause of the feeder switch skipping trip is analyzed,and corresponding solutions are proposed,which effectively improve the service life and reliability of the circulating water pump of the condenser,and eliminate the operation risks and major hidden dangers of the condenser.

关 键 词：越级跳闸 双电源切换 循环水泵 调相机 

分 类 号：TM721[电气工程—电力系统及自动化]