中性点经小电阻接地配电网中弧光接地过电压的研究  

Study on the Arc-grounding Overvoltage in the Distribution System with Neutral Point Grounded through Low-resistance

作　　者：高亚栋[1] 杜斌[1] 赵峰[1] 施围[1] 

机构地区：[1]西安交通大学电气工程学院,陕西西安710049

出　　处：《高压电器》2004年第5期345-348,共4页High Voltage Apparatus

摘　　要：研究了中性点经小电阻接地方式对弧光接地过电压的影响。首先理论分析了弧光接地过电压在中性点经小电阻接地系统中存在的可能性,并用EMTP对其进行了过电压计算。研究表明。In this paper, theoretical analysis is made firstly about the possibility of arc-grounding overvoltage existing in low-resistance grounding system. Calculations on overvoltage magnitude are performed by EMTP. The results show that the problem of arc-grounding overvoltage is settled effectively with low-resistance grounding method.

关 键 词：弧光接地过电压 中性点 小电阻接地 配电网 EMTP 计算 

分 类 号：TM864[电气工程—高电压与绝缘技术]