煤矿井下电网故障定位技术研究

Coal Mine Underground Power Grid Fault Location Technology

针对煤矿井下电缆故障的快速定位问题,首先分析了井下电缆的常见故障类型,并阐述了故障的具体定位步骤,然后对传统的阻抗法定位原理及存在的问题等内容进行了研究。在此基础上,提出了利用TDR法进行故障精确定位的具体原理和时间差的精确测量方法,可为煤矿井下电缆故障定位系统的开发提供参考。

Aiming at the problem of quick positioning of underground cable faults in coal mines,this paper first analyzes the common fault types of underground cables and describes the specific positioning steps of faults.Then it studies the principles and existing problems of traditional impedance method positioning.Based on this,the specific principle of fault positioning using TDR method and the accurate measurement method of time difference are proposed.The research content of this paper can provide reference for the development of fault location system for underground cables in coal mines.