城市配电网中性点接地方式的适应性分析与选择研究

Adaptability Analysis and Selection of Neutral Grounding Mode of Urban Distribution Networks

中性点接地方式是涉及到技术、经济和安全等多个方面的综合问题,具有理论研究与实践经验密切结合的特点,也是配电网系统实现安全与经济运行的基础之一。从供电可靠性与设备及人身安全两个维度对配电网中性点不同接地方式的影响及适应性进行了比较分析,并指出了经消弧线圈接地及经小电阻接地两种方式下需重点考虑的问题,为配电网中性点接地方式及其相关设备的选择提供依据和参考。

Neutral grounding mode involves many aspects including technology,economy and safety,with the characteristics of theoretical research closely combined with practical experience,which is one of the foundation for the security and economical operation of the power distribution system.From two dimensions of the equipment and personal safety and power supply reliability of the distribution network,neutral point grounding effect and adaptability are analyzed in this paper,and?the problems that need to be considered in the two ways of grounding?are pointed out,which provides reference for the neutral grounding of distribution power network the way and the selection of related equipments.