摘要
对于发电机中性点的接地方式通常采用三种方式 ,即 :不接地、经消弧线圈接地和经配电变压器或高阻接地。发电机的中性点接地方式不仅与定子接地保护所采用的形式密切相关 ,而且与单相接地故障电流、定子绕组的绝缘相关。因此必须考虑这几个方面的问题 ,选择最佳的接地方式。
Generally,there are three connection modes for the neutral point of generator to the earth:first,no connection to the earth;second,connected to the earth by resistor or reactor;third,connected directly to the earth.The mode of the connection not noly have a close relation to the generator stator earth fault protection,but also to the current of single phase connected to earth fault and the insulation of the stator.So when we talk about the connection mode of generator's neutral point,we must think about three factors and select the optimal one.
出处
《山西电力》
2002年第5期4-5,18,共3页
Shanxi Electric Power
