摘要
介绍了目前国内煤矿井下660V、1140V供电系统所采用的几种选择性漏电保护的动作原理,指出存在的问题,并提出了改进措施及今后的研究方向。
Several selective leakage protection action principles which are adopted in power supply system of 660V and 1140V in coal mine are presented. Existent problems are pointed out and propose improvement measures and research direction.
出处
《电气开关》
2008年第3期54-56,共3页
Electric Switchgear
关键词
开关
漏电保护
原理分析
改进措施
switch
earth leakage protection
principle analysis
improvement measure
