换流变压器受潮后现场干燥工艺及评估方法  

On Site Drying Process and Evaluation Method of Converter Transformer After Damp

作　　者：李士杰 李青 张新波 徐德增 LI Shi-jie;LI Qing;ZHANG Xin-bo;XU De-zeng(EHV Transmission Company Maintenance&Testing Center of CSG,Guangzhou 510663,China)

机构地区：[1]南方电网超高压检修试验中心,广东广州510663

出　　处：《变压器》2020年第11期50-53,共4页Transformer

摘　　要：某直流输电工程换流变压器长时间停放及运输出现受潮情况,因此现场安装采用了一套针对绝缘油及绝缘件的干燥处理工艺。结果表明这套干燥处理工艺对降低换流变绝缘油及绝缘件中的水含量具有较好的作用。The converter transformer of a DC transmission project is affected by moisture during long-term storage and transportation.Therefore,a set of drying treatment process for insulating oil and insulating parts is adopted for field installation.The results show that the drying process has a good effect on reducing the water content in the insulating oil and insulating parts.

关 键 词：直流输电 换流变压器 干燥处理 热油循环 绝缘电阻 

分 类 号：TM405[电气工程—电器]