两级断路器同时跳闸的原因分析及解决办法  

Analysis and Solution for Causes of Simultaneous Tripping of Upstream and Downstream Circuit Breaker

作　　者：李桢[1] 

机构地区：[1]中国石化股份有限公司茂名分公司化工分部,广东茂名525000

出　　处：《仪器仪表用户》2016年第1期59-61,共3页Instrumentation

摘　　要：针对PLC柜上下两级断路器同时跳闸的问题,对上下两级断路器的特性进行了分析,利用断路器的脱扣曲线找到了问题原因,给出了解决的办法,并对上下两级断路器的设计提出了建议。Aiming at the problem of simultaneous tripping of upstream and downstream circuit breaker in power supply System for PLC, analyze the character of upstream and downstream circuit breaker,find the cause of the problem with circuit breaker tripping curves, gives the solution, and the design proposal of upstream and downstream circuit breaker were put forward.

关 键 词：断路器 跳闸 原因 解决 

分 类 号：TH[机械工程]