关于智能低压断路器维护检验方法的探讨  

Discussion on maintenance test method of intelligent low-voltage circuit breaker

作　　者：付立国 FU Liguo(Huaneng Huiliuhe Power Plant,Yakeshi,Inner Mongolia 022150)

机构地区：[1]华能汇流河发电厂,内蒙古牙克石022150

出　　处：《电气技术》2022年第12期81-84,共4页Electrical Engineering

摘　　要：本文由一起火力发电厂低压厂用电系统馈线电缆短路故障时低压断路器发生拒动导致的越级跳闸事件,引发对智能低压断路器维护检验方法的思考。本文简要介绍智能低压断路器电流互感器的特点,由此提出对断路器维护检验方法的探讨,重点阐述智能保护器的试验方法,为确保断路器处于可靠工作状态提出日常维护建议。This paper discusses the maintenance and inspection method of intelligent low-voltage circuit breaker,which is caused by a skip trip event caused by the failure of low-voltage circuit breaker when the feeder cable of low-voltage auxiliary power system in thermal power plant is short circuited.This paper briefly introduces the characteristics of the current transformer of intelligent low-voltage circuit breaker,and puts forward maintenance and inspection methods of the circuit breaker,focusing on the test methods of the intelligent protector.In order to ensure the reliable operation of circuit breaker,suggestions for routine maintenance are put forward.

关 键 词：低压断路器 电流互感器 维护 检验 

分 类 号：TM561[电气工程—电器] TM621