浅析煤矿变电所的中性点接地方式

Brief Analysis of the Neutral Grounding Method of Coal Mine Substation

叙述了确定中性点接地方式的依据,通过分析中性点直接接地、中性点不接地、中性点经消弧线圈接地、中性点经高电阻接地四种方式的优缺点,确定了其使用范围,并讨论了煤矿中主变压器、发电机中性点接地方式的确定。

This paper described the basis for determination of neutral grounding. By analyzing the advantages and disadvantages of four kinds of ways including neutral grounding, isolated neutral system, neutral grounding by extinction coil and neutral grounding by high resistance, this paper determined the scope of its use and discussed the determination of neutral grounding of the main transformer and the generator in the coal mine.