Abstract

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了分析和探讨。With the increasingly expanding neutral ungrounded power supply system and the increasing of the cable feeder circuit of the medium-voltage network, the single-phase grounding capacitive current is also on the rise. Consequently, altering and reasonably choosing the neutral grounding mode of the grid have been the key technical problems related to the operation reliability of power grid. And this paper will analyze and discuss about the neutral grounding mode of the grid.

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