一起110kV变压器重瓦斯保护误跳运行线路事故分析  

Analysis of an Accident of Mistakenly Tripping Operating Line Caused by 110kV Transformer Heavy Gas Pressure Protection

作　　者：袁慧涛 程昭龙 袁文涛 YUAN Huitao;CHENG Zhaolong;YUAN Wentao(Heze Power Supply Company of State Grid Shandong Electric Power Company,Heze 274000,China;Henan Institute of Technology,Xinxiang 453003,China)

机构地区：[1]国网山东省电力公司菏泽供电公司,山东菏泽274000 [2]河南工学院,河南新乡453003

出　　处：《山东电力高等专科学校学报》2024年第4期5-8,共4页Journal of Shandong Electric Power College

摘　　要：针对一起110kV变压器重瓦斯保护动作导致运行线路跳闸的事故,结合事故前变电站运行方式、跳闸后保护动作信息及现场检查结果,分析了变压器重瓦斯保护误跳运行线路的过程,确定了事故原因,发现了在变压器保护二次电缆运维、变电站配置描述文件、设备验收等方面存在的问题,并制定了相应的整改措施,以保证电网安全稳定运行。In allusion to a tripping accident of operating line caused by the action of the 110 kV transformer heavy gas pressure protection,combining the operation mode of the substation before the accident,the protection action information after the trip and the results of on-site inspection,the process of the accident of mistakenly tripping the operating line caused by the 110 kV transformer heavy gas pressure protection is analyzed,and the causes of the accident are determined.The problems in operation and maintenance of transformer protection secondary cable,substation configuration description file,equipment acceptance,and other aspects,are identified.The corresponding rectification measures are formulated so as to ensure the safe and stable operation of the power grid.

关 键 词：变压器 重瓦斯保护 事故分析 

分 类 号：TM63[电气工程—电力系统及自动化]