抽屉式低压断路器短路事故的分析和防范  

Analysis and Prevention of Short Circuit Accident of Drawer Low Voltage Circuit Breaker

作　　者：谭永林[1] 

机构地区：[1]中国石油天然气集团公司,北京100083

出　　处：《低压电器》2012年第4期57-59,共3页Low Voltage Apparatus

摘　　要：针对一起抽屉式低压断路器短路事故,分析了变配电室低压柜的抽屉式低压断路器与母排插接时的缺陷,指出了防范的措施。运行实践表明:凡是单排插接的低压断路器全部整改成"动、静触头中段插接方式"后,接触安全系数大大提高,至今再未发生类似事故。This article analyzed the defect of busbar insertion mode of drawer low voltage circuit breaker in a power transformation and distribution chest based on an equipment short circuit accident, and pointed out the preven- tative measures. The practice shows that the contact safety factor will be greatly enhanced when the single row inser- tion mode of circuit breaker is reformed to the middle insertion mode between movable and stationary contacts.

关 键 词：低压断路器 母排 插接 短路 防范 

分 类 号：TM561.1[电气工程—电器]