一起10 kV母线TV击穿事故分析及对策  

Analysis and Countermeasure of One 10 kV Busbar TV Breakdown Accident

作　　者：马梦朝 潘博超 韩生海 吕紫微 周存孝 贾永雷 MA Mengchao;PAN Bochao;HAN Shenghai;LYU Ziwei;ZHOU Cunxiao;JIA Yonglei(State Grid of China Technology College,Jinan 250002,China;State Grid Yushu Power Supply Company,Yushu 815000,China)

机构地区：[1]国家电网有限公司技术学院分公司,山东济南250002 [2]国网玉树供电公司,青海玉树815000

出　　处：《国网技术学院学报》2019年第5期1-3,8,共4页Journal of State Grid Technology College

摘　　要：中性点不接地是10 kV配电系统常见的运行方式,系统发生单相接地故障时允许运行2 h。此文主要介绍了一起变电站内10 kV母线TV击穿事故,分析了导致TV击穿的原因,给出了处理过程,揭示了目前存在的问题,提出了应对措施,以减少此类事故的发生。It is a common operation mode for 10 kV power distribution system to have neutral points ungrounded.When a single-phase earth fault occurs, the system is allowed to run for 2 h.This paper mainly introduces a 10 kV busbar TV breakdown accident in the substation.The cause of TV breakdown is analyzed,the disposal process is provided,the present problems are revealed and the countermeasures are put forward,so as to reduce the occurrence of such accidents.

关 键 词：TV击穿 两相接地 铁磁谐振 

分 类 号：TM644[电气工程—电力系统及自动化]