煤矿供电越级跳闸问题的研究

Research on the Problem of Power Supply over Tripping in Coal Mine

煤矿井下发生短路故障时,经常会导致地面变电站跳闸,即越级跳闸,从而造成井下大面积停电,严重影响煤矿井下安全。本文根据煤矿供电系统特点,分析和总结了造成短路越级跳闸的原因,提出了利用智能变电站区域集控技术防止越级跳闸的方案,经过在煤矿的实际应用,效果良好。

Short circuit under the mine often leads to ground substation tripping,namely override tripping,causing down-hole blackouts,which seriously influence the coal mine safety.Based on the characteristics of coal mine power supply system,the paper analyzes and summarizes the causes of the above short circuit trip,we put forward the scheme of using intelligent substation area to prevent tripping,which proves to be good after the practical application in coal mine.