煤矿高压供电系统接地方式及单相接地选线研究

Study on Grounding Method and Wire Selection of Monophase Grounding for Coal Mine High-voltage Power System

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 high-voltage power supply system,the authors study the different small current grounding systems and the features when the menophase grounding failed and the corresponding grounding wire selection method.the widely used and reliable protection methods for grounding wire selection are typically analyzed.