水轮发电机定子端部过热故障分析与诊断  

Analysis and Diagnosis of Overheating Fault at the End of Hydrogenerator Stator

作　　者：王团结[1] 张少鹏[1] WANG Tuanjie;ZHANG Shaopeng(Xi′an Institute of Thermal Engineering Co.,Ltd.,Xi′an 710054,China)

机构地区：[1]西安热工研究院有限公司,陕西西安710054

出　　处：《电工技术》2020年第21期159-161,共3页Electric Engineering

摘　　要：在某水轮发电机A修检查过程中发现定子上、下端部有过热导致部分铁芯表面发黑和变形的现象。根据机组以往运行参数和现场检查情况,分析定子端部铁芯过热可能的主要原因,并通过试验和仿真进行验证,最后提出解决方案。During a maintenance inspection of a hydrogenerator,it was found that the upper and lower ends of the stator were overheated,resulting in blackening and deformation of some iron core surfaces.According to the unit′s previous operating parameters and on-site inspections,the main causes of possible overheating of the iron core at the end of the stator were analyzed and verified through experiments and simulations.Finally,solutions were proposed.

关 键 词：水轮发电机 端部过热 铁芯损耗 进相运行 端部漏磁 

分 类 号：TM622[电气工程—电力系统及自动化]