居民小区漏电保护开关越级跳闸原因及对策分析  

Causes and Countermeasures of Override Tripping of Leakage Protection Switch in the Resident Sub-district

作　　者：向珉江[1] 范宪铭[1] 张辉[1] 

机构地区：[1]国网山东省电力公司济南供电公司,济南250012

出　　处：《山东电力技术》2016年第4期51-55,共5页Shandong Electric Power

摘　　要：漏电保护开关越级跳闸不仅影响居民正常用电,也给排查故障增加了难度。分析漏电保护的基本原理及采取多级漏保的优点,结合居民小区里三级漏保开关的运行现状,对越级跳闸的原因进行了分析,并提出了相应的改进方法。The override tripping operation of leakage protection switches not only affects the residential electricity consumption,but also increases difficulties of troubleshooting. The basic principle and advantages of the multi-stage leakage protection are introduced, reasons of the override trip are analyzed combining status of three-stage leakage protection in the resident sub-district, and then corresponding improvement methods are proposed.

关 键 词：漏电保护开关 越级跳闸 三级保护 低压配网 

分 类 号：TM774[电气工程—电力系统及自动化]