摘要
该文简述了地下煤矿电气保护接地的必要性及保护接地装置的设置,探讨了接地电阻计算和排除地下单相接地故障方法,提出了井下低压系统中接地保护应注意的问题,具有一定借鉴意义。
This paper briefly underground coal mine electrical grounding protection and the need to protect the grounding device settings on the grounding resistance calculation and remove underground GROUND FAULT method proposed underground low-voltage system grounding protection should pay attention to the problem, a certain reference.
出处
《科技信息》
2008年第2期310-310,274,共2页
Science & Technology Information
关键词
煤矿
保护接地
接地体
中性点不接地系统
coal mines
protection grounding
grounding
not neutral earthing system