选择性漏电保护在煤矿井下低压电网中的应用  

Application of Selective Leakage Protection in Underground Low-voltage Power Grid of Coal Mines

作　　者：李卫东 LI Weidong(Dongfeng Coal Mine Co.,Ltd.,Shanxi Lanhua Group,Jincheng 048000,Shanxi,China)

机构地区：[1]山西兰花集团东峰煤矿有限公司,山西晋城048000

出　　处：《能源与节能》2018年第12期189-190,共2页Energy and Energy Conservation

摘　　要：通过简单介绍煤矿井下漏电保护的重要性,阐述了选择性漏电保护和附加直流电源检测式漏电保护的方式、原理及优缺点,并以东峰煤矿井下中央变电所低压电网选择性漏电保护系统实施方案为例来说明这2种漏电保护方式配合使用的优势。By briefly introducing the importance of underground leakage protection in coal mines,this paper expounded the methods,principles,advantages and disadvantages of selective leakage protection and additional DC power supply type leakage protection.Taking the implementation scheme of the selective leakage protection system of the low-voltage power grid of the underground central substation of Dongfeng Coal Mine as an example,this paper illustrated the advantages of using these two leakage protection methods together.

关 键 词：煤矿 选择性漏电保护 低压电网 保护装置 

分 类 号：TD611[矿业工程—矿山机电]