华电技术 ›› 2011, Vol. 33 ›› Issue (10): 48-50.

• 技术交流 • 上一篇    下一篇

一起10kV母线停电事故的成因分析

周宣   

  1. 天脊集团高平化工有限公司,山西高平048400
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-10-25 发布日期:2011-10-25

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

ZHOU Xuan   

  1. Gaoping Chemical Industry Company Limited, Tianji Group, Gaoping 048400, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-10-25 Published:2011-10-25

摘要: 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。

关键词: 单相接地, 过电压, 运行方式, 中性点接地, 电阻

Abstract: A power outage accident in a 10kV 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.

Key words: single-phase grounding, over voltage, operation mode, neutral point earthing, resistor