摘要
本研究立足于现阶段煤矿供电系统在防雷设计方面存在的缺陷,以西山煤电东曲矿为例,对该煤矿现有防雷措施的不足之处进行调研发现,该煤矿供电系统存在变压器低压侧雷电过电压保护确实以及输电线路绝缘子串误用等问题,据此认为,应在变压器低压侧加装避雷器,在输电线路处设置过电间隙,对接地设施进行优化设计,并借助于电磁暂态仿真软件对以上措施的实施效果进行了仿真分析,结果显示,以上措施起到了良好的防雷保护效果,在提升供电系统稳定性的同时,也形成了煤矿安全运行的保障。
Based on the shortcomings of lightning protection design in coal mine power supply system at present,this study takes Xishan Coal and Electricity Dongqu Mine as an example,and investigates the inadequacies of the existing lightning protection measures in the coal mine and finds that the coal mine power supply system There are problems such as the lightning overvoltage protection on the low-voltage side of the transformer and the misuse of the insulator string of the transmission line.According to this,it is considered that a lightning arrester should be installed on the low-voltage side of the transformer,and an over-current gap should be set at the transmission line to optimize the design of the grounding facility.The electromagnetic transient simulation software simulates the implementation effect of the above measures.The results show that the above measures have a good lightning protection effect.While improving the stability of the power supply system,it also forms a guarantee for the safe operation of coal mines.
作者
杜鹏程
DU Pengcheng(Xishan Coal and Electricity Group Dongqu Mine,Taiyuan 030200,China)
出处
《煤矿现代化》
2019年第5期191-194,共4页
Coal Mine Modernization
关键词
供电系统
防雷设计
线路
绝缘
power supply system
lightning protection design
line
insulation
