摘要
本文分析了异步电动机运行时的有功损耗、功率因数与入端电压的关系,阐明了异步电动机降压运行节电的机理,并导出晶闸管控制异步电动机节电的使用条件在特定延迟角触发下控制其应用的条件。
The article analyses the relations among active dissipation, power factor and input voltave of asychronous electric motor in operation, explains the electricity-saving Principle of the opcrstive asychronous electric motor when its voltave is reduced, and works out its applied condition under SCR-controlled triggered dy specific delay angle.
关键词
功率因数
晶闸管
异步电动机
节电
Percentage of load
active dissipation
power factor
delay angle
