10/0.4 kV变电所接地做法简析  

Brief Analysis of 10/0.4 kV Electrical Substation Grounding Practice

作　　者：于劲丛 YU Jincong(Shandong Zhongjia Yingrui Medical Technology Co.,Ltd.,Yantai 264003,China)

机构地区：[1]山东中嘉英瑞医疗科技有限公司,山东烟台264003

出　　处：《科技创新与生产力》2023年第6期124-126,共3页Sci-tech Innovation and Productivity

摘　　要：随着城市规模的快速扩增,电力设施建设也取得迅猛发展,10/0.4 kV变电所数量急剧增加。随着变电所的广泛投用,因变电所接地设置不合理引起的触电、电气火灾事故时有发生,因此变电所接地设置必须引起广大业内技术人员的重视。现阶段变电所中性点接地点的设置存在较多的争议,本文在尽量确保正常工作电流和故障电流路径唯一且最短捷的原则下,针对单电源、多电源情况分别讨论分析,通过电流路径分析方法,简单分析10/0.4 kV变电所接地的做法,可为设计人员在变电所接地设计中提供参考。With the rapid expansion of urban scale,the construction of power facilities has also achieved rapid development,and the number of 10/0.4 kV electrical substation has increased sharply.With the widely use of electrical substation,electric shock and electrical fire accidents often occur due to the unreasonable grounding setting of electrical substation,so the grounding setting of electrical substation must attract the attention of technicians in the industry.At present,there are many disputes about the setting of neutral point grounding point in electrical substation.Under the principle of ensuring that the normal working current and fault current paths are unique and shortest,this paper discusses and analyzes the single power supply and multiple power supply respectively.Through the current path analysis method,simple analysis of 10/0.4 kV electrical substation grounding practices can provide reference for designers in electrical substation grounding design.

关 键 词：10/0.4 kV变电所 接地做法 接地系统 中性点接地 杂散电流 

分 类 号：TU852[建筑科学] TM63[电气工程—电力系统及自动化]