矿井高压电网隔爆开关欠电压保护的分析与改进  

Analysis and Improvement of Under-voltage Protection of Flameproof Switch in Mining High-voltage Electric-network

作　　者：丁宁[1] 邹有明[1] 

机构地区：[1]河南理工大学电气工程与自动化学院,河南焦作454003

出　　处：《煤矿机电》2008年第2期88-89,92,共3页Colliery Mechanical & Electrical Technology

摘　　要：论述煤矿高压电网欠电压保护存在的问题,分析欠电压保护延时,瞬时的选择和延时时间的确定,介绍3种可行的延时型欠电压保护技术方案。The paper discusses the problems occurred in the under-voltage protection in mining high-voltage electric-network, analyses the choices between time-delay and instantaneous under-voltage protection as well as the determination of delayed time. Three feasible technical schemes of time-delay under-voltage protection are introduced.

关 键 词：矿井高压电网 欠电压保护 延时动作时间 

分 类 号：TD614.5[矿业工程—矿山机电]