突发短路对110kV主变压器损坏分析研究  

Analysis and Research on Damage of 110kV Main Transformer Caused by Sudden Short Circuit

作　　者：张宏伟 ZHANG Hong-wei(Jinchang Electric Power Company,State Grid Gansu Electric Power Company,Jinchang Gansu 737100,China)

机构地区：[1]国网甘肃省电力公司金昌供电公司,甘肃金昌737100

出　　处：《机械研究与应用》2021年第4期123-127,共5页Mechanical Research & Application

摘　　要：110 kV及以上主变压器因外部短路引起的损坏的原因是多方面的,文中对一起典型的近距离突发短路造成两台变压器严重损坏进行详细分析,并结合相关检查试验项目和要求,对变压器近距离出口短路损坏事故的过程、检查试验情况和分析处理进行叙述,介绍了变压器经受出口短路损坏后的现场判别和修复方案,提出针对性的防范措施,为提高电网和设备安全、稳定、健康运行提供参考和借鉴。There are many reasons for damage of the 110kV and above main transformers caused by external short circuit.In this paper,a typical short circuit in short distance is analyzed in detail,which has caused serious damage to two transformers.Combined with the relevant inspection and test items and requirements,the process,inspection and test situation,analysis and treatment of the short circuit damage accident of transformer in short distance exit are described;the site identification and repair scheme of transformer after the outlet short circuit damage are introduced;and the corresponding preventive measures are proposed.It would provide reference for improving the safe,stable and healthy operation of power grid and equipment.

关 键 词：变压器 近距离故障 损坏 修复 

分 类 号：TM43[电气工程—电器]