中压电网中性点接地方式分析与探讨

Analysis and Discussion on Neutral Point Grounding Way of Medium-voltage Power Network

针对中压电网中性点不接地供电网系统的不断扩大及电缆馈线回路的增加,单相接地电容电流也在不断的增加,改造电网中性点接地方式、合理选择电网中性点接地方式,已是关系到电网运行可靠性关键的技术问题,文中就电网的中性点接地方式进行分析和探讨。

Based on the expansion of network neutral point grounding grid system and the increase of cable feeder circuit, single phase ground capacitive current is increasing, the transformation of neutral grounding grid and a reasonable choice of neutral network grounding method are related to the power grid reliability key technical problem, the power grid neutral point grounding ways are analyzed and discussed.