摘要
分析了煤矿6kV小电流接地系统各种接地选线原理,介绍了现在几种常用的小电流接地选线装置,重点介绍了WLD-6型微机选线装置,给出了硬件结构工作原理与特性,以及在寺河煤矿供电系统改造中的工程应用。
The paper analyzed several principle of fault line-selection in mine 6kV small current grounding system, and introduced some devices in common use now. The WLD-6 line-selection device by computer is mainly introduced. Operating principle, characteristics of hardware, and application of the device to modify power supply system is put forward.
出处
《煤矿机电》
2008年第4期36-38,共3页
Colliery Mechanical & Electrical Technology
关键词
中性点不接地系统
单相接地
有功方向型原理
fault in neutral non-ground system
single-phase grounding
active direction principle
