两起典型的变压器雷电冲击故障分析  

Analysis of Two Typical Transformer Lightning Impulse Faults

作　　者：郭艳君[1,2] 陈志国 Guo Yan-jun;Chen Zhi-guo

机构地区：[1]保定天威集团特变电气有限公司,河北保定071056 [2]河北省天然酯绝缘油变压器技术创新中心,河北保定071056

出　　处：《电力系统装备》2020年第9期130-131,共2页Electric Power System Equipment

摘　　要：变压器在运行过程中会面临雷击风险,雷电冲击试验是保障投运变压器稳定运行的一项重要试验。本文分别对常规电力变压器和铁路牵引变压器的雷电冲击故障现象和原因进行了数据分析与器身拆解验证,以设备生产商视角优化变压器设计方案与制造工艺,提高变压器的安全稳定运行水平。The transformer will face the risk of lightning stroke during operation.The lightning impulse test is an important test to ensure the stable operation of the transformer.In this paper,the phenomenon and cause of lightning impulse fault of conventional power transformer and railway traction transformer are analyzed and verified by data analysis and disassembly of the transformer body.From the perspective of equipment manufacturer,the design scheme and manufacturing process of the transformer are optimized to improve the safe and stable operation level of the transformer.

关 键 词：电力变压器 铁路牵引变压器 雷电冲击 全波波形 

分 类 号：TM76[电气工程—电力系统及自动化]