电动机控制回路的分析与改造

Analysis on motor control circuit and its reformation

介绍了Pmac801智能型保护控制器,通过电厂几例事故,对低压380 V塑壳断路器加接触器带Pmac801智能型保护控制器的电动机控制回路进行了理论分析,指出了存在的问题并提出了解决方法。

The Pmac 801 intelligent protection controller was introduced.According to several accidents occurred in the power plant,the motor control circuit,which includes low voltage 380V molded case circuit breaker plus contactor with Pmac 801 intelligent protection controller,was analyzed theoretically.Some existing problems were pointed out,and the solving methods were put forward.