煤矿井下电网漏电故障及保护技术分析

Analysis to Settle High and Low-pressure Power Supply Wire Net Leakage Electric Malfunction and Protection Technique in Coal Mine Well

根据煤矿生产的环境特点,结合现场实际,从不同角度分析了井下电网漏电故障的原因及危害。详细阐述了3种井下电网漏电保护方式并加以比较分析。最后介绍了矿用检漏继电器的使用要求以及我国目前使用较为普遍的几种检漏继电器。

Aeeording to the environmental characteristics in coal mine, combining the reality of scene, analyzes the causes and harms of the mine electric leakage. Three guard modes of wire net eleetrie leakage are expounded in detail and take into more comparison. At last, the usage of leak relay and several leak relay are used widely in our country currently are introduced.