防越级跳闸保护器在矿井供电系统中的应用探析

Discussion on the Application of Anti-overtrip Protector in Mine Power Supply System

为了保证矿井供电系统的安全性,需要安装各种保护开关。然而由于各种原因,在运行时这些保护开关出现了越级跳闸问题,极大地减弱了保护系统的作用。分析了保护开关出现越级跳闸现象的原因,介绍了防越级跳闸的几种方法,重点分析了防越级跳闸保护器ZBT-11C的应用,可以为矿井防治越级跳闸事故提供一定的参考。

In order to ensure the safety of the mine power supply system,it is necessary to install various protection switches.However,due to various reasons,these protection switches have the problem of over tripping during operation,which greatly reduces the role of the protection system.This paper analyzed the causes of the over-trip phenomenon of the protection switch,introduced several methods to prevent the over-trip,and emphatically analyzed the application of the over-trip protector ZBT-11C,which can provide some reference for the mine to prevent the over tripping accident.