矿井馈电开关选择性漏电保护探究

Study on Selective Leakage Protection of Mine Feeder Switch

馈电开关作为矿井低压供电网络的关键构成组件,是确保矿井生产作业持续、高效开展的有力保障。在分析矿井低压电网单相漏电故障的基础上,对选择性漏电保护原理和选线做出分析,并对其应用效果开展论述,结果表明选择性漏电保护能在确保井下漏电故障有效防范的同时确保井下供电网络其他支路的运行有效性,从而为矿井生产的持续开展提供坚实保障。

As the key component of the mine low voltage power supply network,the feeder switch is a powerful guarantee to ensure the continuous and efficient operation of the mine production.Based on the analysis of single phase leakage fault of low voltage network,this paper makes the analysis on the principle of selective leakage protection and circuit selection and carries out a discussion on its application effect.The results show that the selective leakage protection can effectively prevent the underground leakage failure and ensure the effective operation of underground power supply network and other branches so as to provide a solid guarantee for the continuous production of coal mines.