220 kV断路器本体三相不一致保护改造实践  

Retrofit Practice of Body Three-phase Inconsistent Protection for 220 kV Circuit Breakers

作　　者：杜涛 肖蕾 刘亮 DU Tao;XIAO Lei;LIU Liang(State Grid Xiaogan Power Supply Company,Xiaogan 432100,China)

机构地区：[1]国网孝感市供电公司,湖北孝感432100

出　　处：《山东电力高等专科学校学报》2023年第2期10-12,共3页Journal of Shandong Electric Power College

摘　　要：针对目前220 kV断路器本体三相不一致保护存在的继电器抗干扰能力差、容易误动等问题,提出了220 kV断路器本体三相不一致保护的改造方案,介绍了220 kV断路器本体三相不一致保护的改造实例,进行了二次回路调试及继电器校验,为断路器同类改造工作提供参考。In allusion to the problems existing in the current body three-phase inconsistent protection for 220 kV circuit breakers,such as poor anti-interference ability of relay and easiness of incorrect tripping,the retrofit scheme of body three-phase inconsistent protection for 220 kV circuit breakers is proposed,the retrofit example is introduced,and the secondary circuit debugging and relay calibration are carried out,which can provide reference for the similar retrofit of circuit breakers.

关 键 词：三相不一致保护 断路器 改造 

分 类 号：TM772[电气工程—电力系统及自动化]