摘要
短路越级跳闸在煤矿供电系统中时有发生,成为煤矿生产中的一个难题,如何解决煤矿供电系统短路越级跳闸成为煤矿安全管理的一项重要任务。文中对目前三种主流技术电流速断延时法、光纤纵差保护法和地面通讯保护法进行了剖析,分析了它们的技术特点和应用情况。
Short circuit override trip happens now and then in mine power supply system. And it is a problem in mine safety production. How to solve the short circuit override trip accident of the coal mine power supply system becomes an important task in coal mine safety management. In this paper, the Technical characteristics and Application were analyzed in view of the three kinds of mainstream technology-current quick break time delay method, optical fiber longitudinal differential protection method and ground communication protection method.
出处
《山东煤炭科技》
2017年第10期114-115,117,共3页
Shandong Coal Science and Technology
关键词
煤矿安全
供电线路
短路
越级跳闸
coal mine safety power supply line short circuit override trip
