煤矿6kV电网接地选线方式的研究  

Method and Devices of Line Selection to Earth Fault in Mine 6kV Power Net

作　　者：李永学[1] 宋建成[1] 

机构地区：[1]太原理工大学研究生院

出　　处：《煤矿机电》2008年第4期36-38,共3页Colliery Mechanical & Electrical Technology

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.

关 键 词：中性点不接地系统 单相接地 有功方向型原理 

分 类 号：TM732[电气工程—电力系统及自动化]