煤矿高压供电系统接地方式及单相接地保护研究

Study on method of coal mine high-voltage power system neutral grounding and unbalanced earth fault confirm

针对煤矿供电系统的特点 ,较全面地分析了不同方式的小电流接地系统及其发生单相接地故障时的特点和相应的接地选线方式 ,对应用范围广、可靠性高的选线保护方式作了典型分析 。

According to the characteristic of coal mine,the author study roundly on high_voltage power supply system about its neutral grounding method,unbalanced earth faults confirm.Analyze the typical method of fault confirmed in detail.