摘要
通过对三相异步电动机缺相运行出现的原因、危害进行分析,重点介绍了利用一只交流接触器自动切断电源、利用双刀开关、欠电流继电器、断丝电压、零序电压对三相异步电动机缺相运行的5种保护方法,并详细阐述了其工作原理。
Lays the emphasis on the reasons and side - effects which it brings when it is in motion. It mainly introduces five ways of protection of three - phase asynchronous electric motor when it is in motion being lack of phase, they are automatic cutting power, using double switch, making use of the lack of electric current relay, using the broken wire voltage and disorder current. Its working procedures will also be listed in detail.
出处
《煤矿机械》
北大核心
2008年第1期156-158,共3页
Coal Mine Machinery
关键词
电动机
缺相运行
缺相保护
方法
electric motor
in motion while lacking in phase
protection while lacking inphase
method
