松江地区配电网中性点接地方式分析及改造方案研究  

Analysis of Neutral Grounding Mode of Songjiang Distribution Network and Study on Its Transformation Scheme

作　　者：茅伟杰 杨辰飙 姜萌 曹红 朱佩琳 MAO Weijie;YANG Chenbiao;JIANG Meng;CAO Hong;ZHU Peilin(State Grid Songjiang Power Supply Company,Shanghai 201600,China;State Grid Qingpu Power Supply Company,Shanghai 201707,China)

机构地区：[1]国网上海市电力公司松江供电公司,上海201600 [2]国网上海市电力公司青浦供电公司,上海201707

出　　处：《山东电力高等专科学校学报》2021年第6期14-17,21,共5页Journal of Shandong Electric Power College

摘　　要：介绍了松江地区配电网中性点接地方式的现状,分析了3种常用接地方式的优缺点。以某110 kV城区变电站为例,分析了该变电站10 kV中性点接地方式存在的问题,提出了该变电站10 kV中性点接地系统改造方案,以避免出现欠补偿。The current status of neutral grounding mode of Songjiang distribution network is introduced,and the advantages and disadvantages of three grounding modes commonly used are analyzed.Taking a 110 kV urban substation as an example,the problems in the 10 kV neutral grounding mode of the substation are analyzed,and the transformation scheme of the 10 kV earth neutral system of the substation is put forward so as to avoid undercompensation.

关 键 词：配电网 中性点接地方式 低电阻 

分 类 号：TM862[电气工程—高电压与绝缘技术]