三相电动机缺相保护实用方法  

Practical Phase-lacking Protection to Three-phase Motor

作　　者：姜华[1] 王金波[1] 

机构地区：[1]黑龙江科技学院电信学院,哈尔滨150027

出　　处：《煤矿机械》2006年第8期154-156,共3页Coal Mine Machinery

摘　　要：造成三相电动机损坏的主要原因是缺相启动和运行。针对不同的电源条件并结合多年实践经验给出了2种三相电动机缺相保护电路图,并分析了这2种保护电路的工作原理和优缺点。The major reason that cause the three - phase motor to damage is phase - lacking runing and start . Gaves out 2 kinds of three - phase motors phase - lacking protection circuit picture in according to the different power supply conditions and combine many years practice experience, analyses the working principles and the advantages and disadvantages of these 2 kinds of protection circuits.

关 键 词：缺相 功率因数 接触器 

分 类 号：TM343[电气工程—电机]