220 kV开关本体跳闸中间继电器误动事故分析  

Analysis of Maloperation Accident of Intermediate Relay in 220 kV Switch Body Tripping

作　　者：岑确富 Cen Que-fu

机构地区：[1]广东电网有限责任公司江门供电局,广东江门529000

出　　处：《电力系统装备》2021年第24期99-100,共2页Electric Power System Equipment

摘　　要：跳闸中间继电器作为220 kV及以上开关本体的重要组成部分,其安全系数直接影响着开关控制的可靠性能。从一起典型220 kV开关跳闸中间继电器误动事故出发,分析其无线路故障跳闸的主要原因。针对中间继电器老化、积尘等问题,进行运维检修及预防管控,实现“早发现、早预防、早处理”,旨在最大限度提升220 kV及以上开关本体控制的安全性、可靠性和有效性。As an important part of 220 kV and above switch body,the safety factor of trip intermediate relay directly affects the reliable performance of switch control.Starting from a typical misoperation accident of 220 kV switch tripping intermediate relay,this study analyzes the main causes of no line fault tripping.Aiming at the problems of aging and dust accumulation of intermediate relay,operation and maintenance,prevention and control are carried out to realize“early detection,early prevention and early treatment”,so as to maximize the safety,reliability and effectiveness of 220 kV and above switch body control.

关 键 词：开关本体 跳闸中间继电器 误动 原因分析 处理方案 

分 类 号：TM403.4[电气工程—电器]