对井下高压防爆配电装置电磁机构的改进  

Improvement of Electromagnetic Mechanism of Underground High-voltage Flameproof Power Distribution Unit

作　　者：张会娜[1] 刘东晓[1] 

机构地区：[1]平顶山工业职业技术学院机电工程系,河南平顶山467001

出　　处：《煤矿机电》2010年第2期84-84,88,共2页Colliery Mechanical & Electrical Technology

摘　　要：分析了电网电压波动造成短路时停电对煤矿井下安全的危害,通过对井下高压防爆配电装置的电磁机构进行改造,避免了电网瞬间失压(或欠压)造成的大面积停电事故。Analyzes the hazards of power cut of short circuit caused by power grid voltage fluctuations on the safety underground coal mine, it evades a large area blackout caused by an instant power grid loss-of-voltage （or under voltage ） through the improvement of electromagnetic mechanism of underground high-voltage flameproof power distribution unit.

关 键 词：失压 欠压 机械阻尼 煤矿安全 

分 类 号：TM503[电气工程—电器]