摘要
为了确保煤矿矿井内各电力设备能够稳定运行,提升煤炭生产效益,阐述了煤矿矿井供电短路及过流保护技术要求。以山东某煤矿为例,提出计算保护范围最远点两相短路电流、整定高压配电箱过电流继电器、整定低压防爆馈电开关过流继电器的操作步骤。针对供电短路与过流保护技术方案,需要根据煤矿的实际情况选择最佳的操作方式与电力设备,以确保供电安全,保障煤矿的正常生产。
In order to ensure the stable operation of various power equipment in coal mines and improve the efficiency of coal production,this article elaborates on the technical requirements for short-circuit and overcurrent protection in coal mine power supply.Taking a coal mine in Shandong Province as an example,it proposes the operation step of calculating the two-phase short-circuit current at the farthest point of the protection range,setting the overcurrent relay of the high-voltage distribution box,and setting the overcurrent relay of the low-voltage explosionproof feeder switch.For the technical solutions of power supply shortcircuit and overcurrent protection,it is necessary to select the best operation mode and power equipment according to the actual situation of the coal mine to ensure power supply safety and guarantee the normal production of the coal mine.
作者
刘涛
王茂全
王崇强
LIU Tao;WANG Maoquan;WANG Chongqiang(Shandong Zaozhuang Mining Group Zhongxing Electric Co.,Ltd.,Zaozhuang,Shandong Province,277000 China)
出处
《科技资讯》
2025年第2期97-99,共3页
Science & Technology Information
关键词
供电短路
电力设备
过流保护
煤炭生产
Power supply short circuit
Power equipment
Overcurrent protection
Coal production
