一起110kV变压器有载重瓦斯跳闸故障及分析  

An On-Load Heavy Gas Tripping Fault of the 110kV Transformer and Its Analysis

作　　者：左美洋 李久福 朱永超 崔兆亮 张甲辉 董旭 秦铮 ZUO Meiyang;LI Jiufu;ZHU Yongchao;CUI Zhaoliang;ZHANG Jiahui;DONG Xu;QIN Zheng(Jinan Power Supply Company of State Grid Shandong Electric Power Company,Jinan Shandong 250012,P.R.China;The First Company of China Eighth Engineering Bureau Ltd.,Jinan Shandong 250000,P.R.China)

机构地区：[1]国网山东省电力公司济南供电公司,山东济南250012 [2]中建八局第一建设有限公司,山东济南250100

出　　处：《重庆电力高等专科学校学报》2024年第3期1-4,22,共5页Journal of Chongqing Electric Power College

摘　　要：对某供电公司一起110kV变电站主变有载重瓦斯故障跳闸事故进行分析,通过现场变压器油气分析和电气试验,确定了有载开关的真空灭弧室应断未断是导致此次重瓦斯跳闸事故的原因。随后对有载开关吊芯进行解体检查,分析了真空灭弧室卡死的原因并还原了故障过程,最后提出了相应的预防措施。This paper analyzes an on-load heavy gas tripping fault of the main transformer of the 110kV substation in a power supply company.Through on-site oil and gas analysis and electrical tests of the transformer,it has been determined that the fault was caused by the fact that the vacuum bubble of the on-load switch had not been broken.Then,the hanging core of the on-load switch was disassembled and inspected,the cause of the stuck vacuum bubble was analyzed,the process of the fault was restored,and corresponding precautionary measures were proposed.

关 键 词：重瓦斯 有载调压变压器 分接开关 真空灭弧室 

分 类 号：TM407[电气工程—电器]