500 kV线路并联电抗器刀闸闭锁回路改进  

Improvement of Knife Gate Locking Circuit of Shunt Reactor in 500 kV Line

作　　者：王荣超 WANG Rongchao(Liuzhou Bureau of China Southern Power Grid EHV Transmission Company,Liuzhou 545006,China)

机构地区：[1]中国南方电网超高压输电公司柳州局,广西柳州545006

出　　处：《电工技术》2021年第1期116-117,共2页Electric Engineering

摘　　要：针对超高压线路并联电抗器刀闸闭锁回路,从规程规范出发,指出了典型闭锁逻辑的不合理之处并提出了改进建议。此外,还根据现场实际,介绍了特殊接线下的高抗刀闸闭锁逻辑及变电站综合自动化改造过程中遇到的问题,总结了高抗刀闸闭锁回路的基本设计思路和验证方法。Aiming at the blocking circuit of the knife gate of the parallel reactor in ultra-high voltage line,starting from the rules and regulations,the irrationality of the typical blocking logic was pointed out and suggestions for improvement were put forward.In addition,according to the actual situation,the high-resistance switch lock logic under special wiring and the problems encountered in the process of comprehensive automation transformation of the substation were introduced.The basic design idea and verification method of high reactance knife switch locking circuit were summarized.

关 键 词：500KV线路 闭锁回路 高抗刀闸 

分 类 号：TM762[电气工程—电力系统及自动化]