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对城市排水系统泵站中的大容量电机进行无功功率补偿,如果采用单机就地补偿存在什么问题?该选用怎样的方法呢?现介绍如下: J.泵站电机采用单机就地补偿存在的问题采用单机就地补偿,对泵站电机会产生以下问题: (1)为了防止产生自励磁过电压,单机补偿的电容容量不可能选得太大。实际空载时的功率因数达不到0.85。 (2)采用单机补偿时,每台电机的补偿电容容量是固定的,而泵站
The urban drainage system pumping station in the large-capacity motor reactive power compensation, if the use of stand-alone in-situ compensation what problems? The choice of what method? Now introduced as follows: J. pumping station motor using single local compensation The problem of using single machine local compensation, the pumping station motor will have the following problems: (1) In order to prevent the generation of self-excitation over-voltage, single capacitor capacity compensation can not be selected too large. The actual no-load power factor less than 0.85. (2) When using stand-alone compensation, the compensation capacitor capacity of each motor is fixed, and the pumping station