功率因数的提高及过补偿的危害

Improvement of Power Factor and Effects of Overcompensation

本文介绍交流配电线路中，无功功率的起因及功率因数降低的原因，并指出了几种提高功率因数的方法。对于功率因数过补偿的问题及其造成的危害进行详尽说明。

The reason of active power, decreasing in power factor and the several methods of increasing in power factor in alternating current circuit are pointed out respectively. In the meantime, the problems of power factor overcompensation and the hazard resulting of it are also discussed in datails.\;