500 kV断路器本体三相不一致防误动回路优化与运用  

Optimization and Application of Three-phase Inconsistency Prevention Misoperation Circuit for 500 kV Circuit Breaker Body

作　　者：龙德勇 丁姣 谭佑文 朱琳 何开正 LONG Deyong;DING Jiao;TAN Youwen;ZHU Lin;HE Kaizheng(Yunnan Huadian Zhenxiong Power Generation Co.,Ltd.,Zhenxiong 657204,China)

机构地区：[1]云南华电镇雄发电有限公司,云南镇雄657204

出　　处：《云南水力发电》2024年第6期7-8,13,共3页Yunnan Water Power

摘　　要：镇雄公司在用西开生产的LW13A-550/Y型500 kV分相操作断路器本体三相不一致保护回路存在多方面的安全隐患。断路器处于合闸状态,当三相不一致跳闸出口继电器故障或因人为误碰、误动将会使断路器误跳闸。介绍了在原有回路的基础上以精简的优化方式高效地解决了上述存在的问题,有效防止运行中的断路器误跳闸,进一步提高涉网设备安全性、稳定性、可靠性。There are various safety hazards in the three-phase inconsistency protection circuit of LW13A-550/Y type 500 kV split phase operation circuit breaker produced by Zhenxiong Company.The circuit breaker is in the closed state.When the three-phase is inconsistent and the outlet relay trips,or if it is accidentally touched or moved by human error,it will cause the circuit breaker to trip incorrectly.This article introduces how to efficiently solve the above-mentioned problems in a simplified optimization method based on the original circuit,effectively preventing the accidental tripping of circuit breakers during operation,and further improving the safety,stability,and reliability of network related equipment.

关 键 词：分相操作断路器 三相不一致 保护回路 防误动 优化 

分 类 号：TM623.7[电气工程—电力系统及自动化]