一起10kV母线停电事故的成因分析

Analysis on reason of a power outage accident in 10kV bus

以一起造成某公司生产系统停车的10 kV母线停电事故为例,介绍了事故现象和保护装置动作情况,分析了事故原因,论述了中性点经电阻接地系统的特点,指出了中性点接地方式的发展趋势。

A power outage accident in a 10kV bus was occurred in a company,and it caused a shutdown accident of the production system of the company.The phenomenon of the accident and the action of the protection devices were introduced.The reason of the accident was analyzed.The characteristics of the power system,the neutral point of which is grounded through a resistor,were expounded.The development tendency of the neutral point grounding mode was pointed out.