异步电动机起动时无功补偿电容投入对供电电源的影响

Impact of reactive compensation capacitor input on the power supply during the start-up of the asynchronous motor

本文以一台异步电动机(380 kW)为例,定量计算并分析了电动机起动时电容器不同投入方式下供电变压器的电流,从而提出了对电源影响较小的电容器投入方式。

Taking an asynchronous motor （380 kW） for example, calculated and analyzed the current of transformer under several different ways of reactive power compensation during the start-up of motor. Then presented a way under which the impact on the power supply least.