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.
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)
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
关键词
TV击穿
两相接地
铁磁谐振
TV breakdown
two-phase grounding
ferromagnetic resonance
