LW11-252型SF_6高压断路器在线监测系统的开发  

Development of on-line monitoring systems for LW11-252 SF_6 high voltage circuit breakers

作　　者：叶洪波[1,2] 吴剑敏[2] 

机构地区：[1]上海交通大学,上海200240 [2]上海市电力公司超高压输变电公司,上海200063

出　　处：《华东电力》2009年第7期1084-1086,共3页East China Electric Power

摘　　要：指出目前断路器在线监测和诊断技术存在的问题。在对SF6断路器状态参数进行实时监测的同时,总结出适用于LW 11-252型SF6高压断路器在线监测的方法,介绍了该监测系统的开发原理及系统构成。以合、分闸线圈电流、触头行程—时间持性曲线及触头寿命为系统监测参数,介绍了断路器故障的分析与预测方法。Problems in current on-line monitoring and diagnosis technology for circuit breakers were pointed out, and the self-developed on-line monitoring system for LW11-252 SF6 high voltage circuit breakers was presented including the principle and structure of the system. The methods for analyzing and predicting the breaker＇s faults were recommended which use the coil current during switching on and off periods, the contact travel-time curve, and the contact life as the system monitoring parameters.

关 键 词：SF6 断路器 高压断路器 在线监测 

分 类 号：TM561[电气工程—电器]