煤矿井下电网越级跳闸原因及对策  

Reasons and Solutions of Override Trip of the Mine Underground Fence

作　　者：周文锁[1] 

机构地区：[1]大同煤矿集团公司小峪煤矿

出　　处：《同煤科技》2014年第2期30-32,共3页Datong Coal Science & Technology

摘　　要：介绍了煤矿井下供电系统的现状。通过对煤矿井下电网特点的分析,找出了煤矿井下高压电网越级跳闸的主要原因,并针对故障原因提出了井下高压电网防越级跳闸的解决方案。"煤矿6 kV供电防越级跳闸数字化保护系统的应用"可从根本上彻底解决越级跳闸问题。The paper introduces the situation of mine underground power supply system. By analyzing the characteristics of the mine underground high-voltage fence, the main reasons of override trip of the high-voltage fence are found, and the solutions of override trip prevention are put forward for the failure cause. Override trip problem can be solved fundamentally by “Application of Digital Protection System of 6 kV Mine Power Supply Override Trip Prevention”.

关 键 词：矿山电工 井下供电 高压电网 越级跳闸 差动保护 数字化保护系统 

分 类 号：TD611.5[矿业工程—矿山机电]