煤矿供电系统继电保护系统设计与应用研究

Study on the design and application of relay protection system for mine power supply system

针对王坡煤业供电系统存在继电保护选择性差、越级跳闸频发的问题,开展了煤矿供电系统继电保护系统设计工作。结果表明,设计的继电保护系统运行稳定可靠,解决了供电系统存在的越级跳闸问题,继电保护系统应用之后,越级跳闸故障次数为0,降低了供电系统运维人员的劳动强度和煤炭采掘成本,提高了采煤设备利用率。

The design of relay protection system for mine power supply system was carried out to address the problems of poor selectivity of relay protection and frequent over-level tripping in the power supply system of Wangpo Coal Industry.The results showed that the designed relay protection system operated stably and reliably,solved the problem of overstep tripping in the power supply system,and the number of overstep tripping faults was 0 after the relay protection system was applied,reduced the labor intensity of power supply system operation and maintenance personnel and coal mining costs,and improved the utilization rate of coal mining equipment.