一起110kV变电站10kV母线失压事件分析  

Analysis of a 10kV Bus Voltage Loss Fault in a 110kV Substation

作　　者：邓睿 汪珂 刘闯 DENG Rui;WANG Ke;LIU Chuang(State Grid Hubei Electric Power Co.,Ltd.Jingmen Power Supply Company,Jingmen 448000,China)

机构地区：[1]国网湖北省电力有限公司荆门供电公司,湖北荆门448000

出　　处：《安徽电气工程职业技术学院学报》2024年第4期81-87,共7页Journal of Anhui Electrical Engineering Professional Technique College

摘　　要：文章介绍了一起110kV变电站10kV母线失压事故的原因分析。主要原因是10kV开关柜因设备老化引发单相接地故障,进而演变成两相和三相故障,最终导致开关柜爆炸及故障进一步发展到主变低压侧,从而造成10kV母线失压。基于故障原因分析,从管理和技术方面提出了故障防范建议,以此来更好地保障电力系统安全稳定运行。This paper analyzes the cause of a 10kV bus voltage loss in a 110kV substation.The main reason is that the aging of the equipment causes the single-phase grounding fault of the 10kV switch cabinet,which then develops into two-phase and three-phase faults,and finally leads to the explosion of the switch cabinet,and the fault of the low-voltage side of the main transformer,resulting in the 10kV bus voltage voltage loss.Based on the fault causes analysis,this paper puts forward some fault prevention suggestions from the aspects of management and technology,so as to ensure the safe and stable operation of power system.

关 键 词：母线失压 故障 开关柜 单相接地 

分 类 号：TM63[电气工程—电力系统及自动化] TM77