矿井高压电网防越级跳闸保护系统设计  

Design of Anti-Override Trip Protection System for High Voltage Power Grid in the Mine

作　　者：王伟[1] WANG Wei(Shanxi Xiangning Coking Coal Group Shennan′ao Coking Coal Co.,Ltd,Linfen Shanxi 041000,China)

机构地区：[1]山西乡宁焦煤集团申南凹焦煤有限公司,山西临汾041000

出　　处：《机械研究与应用》2021年第5期201-203,共3页Mechanical Research & Application

摘　　要：为解决申南凹矿原有矿井供电系统越级跳闸事故频发问题,基于数字式光纤电流纵联差动保护技术设计了井下供电系统防越级跳闸保护系统,介绍数字式光纤电流纵联差动保护技术工作原理,同时对系统的硬件和软件的设计方案进行分析确定,优化后的供电系统实际应用验证系统的安全性得到了提升,未出现越级跳闸事故,为矿井供电系统安全运行提供保障。In order to solve the problem of frequent skip tripping accidents of the original mine power supply system in Shennan’ao mine,based on the digital optical fiber current longitudinal differential protection technology,the anti skip tripping protection system of underground power supply system is designed,and the working principle of digital optical fiber current longitudinal differential protection technology is introduced in this article;at the same time,the design scheme of hardware and software of the system is analyzed and determined. The practical application of the optimized power supply system verifies that the safety of the system has been improved,and there is no skip tripping accident,which provides a guarantee for safe operation of the mine power supply system.

关 键 词：防越级跳闸 矿井供电系统 电流 纵联差动 优化改造 

分 类 号：TD612[矿业工程—矿山机电]