低压系统单相接地短路对低压电机运行的影响

Impact of Single-phase Grounding Fault in Low Voltage System on the Operation of Electromotor

在中性点直接接地的400V低压系统中,单相接地短路是一种常见的故障现象。文章结合低压电动机控制接线的不同方式,分析低压系统发生单相接地短路故障时对电动机运行的影响,并介绍了防晃电交流接触器的应用。

In the neutral directly grounded 400 V low voltage system,single-phase grounding short circuit is a kind of common fault phenomenon.The article combines with low voltage motor control wiring of different ways,analyses impact of single-phase grounding fault in low voltage system on the operation of electromotor,and introduces anti-interference electricity alternating contactor application.