矿井中性点不接地高压电网漏电保护策略
Earth Leakage Protection Measures of Coal Mine Ungrounded-neutral High-voltage Power Networ
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摘要: 分析了煤矿高压电网漏电保护存在的问题,通过计算煤矿高压电网对地电容与单相接地电流,确定电网接地运行方式;在此基础上,重点介绍了中性点不接地高压电网漏电保护设置策略。Abstract: This paper analyzed the questions of earth leakage protection in coal mine high-voltage power network, through the calculation of the capacitive and single-phase current, it ascertained the grounding operation mode of power network, and proposeed the protection measures of earth leakage protection in different operation modes on the basis of researching.