基于纵联差动保护原理的供电系统防越级跳闸研究

Research on Anti-overstep Tripping of Power Supply System Based on Principle of Longitudinal Differential Protection

简单介绍了煤矿生产过程中供电系统常出现的越级跳闸问题,分析了常用的几种防越级跳闸方式的现状,在此基础上提出了基于纵联差动保护原理的防越级跳闸新方式,并对该方式防越级跳闸的理论、工艺设计进行了探究,以便于煤矿企业在面对类似问题时能及时获得解决的途径和办法。

This paper briefly introduced the problem of overstep tripping often occurring in power supply system in coal mine production process,analyzed the current situation of several commonly used anti-overstep tripping modes,put forward a new anti-overstep tripping mode based on the principle of longitudinal differential protection,and probed into the theory and technological design of this mode to prevent overstep tripping.It is convenient for coal mine enterprises to get timely solutions when facing similar problems.