人民长江2016，Vol.47Issue(13)：90-92,3.DOI:10.16232/j.cnki.1001-4179.2016.13.020
大型发电机组磁极线圈匝间短路故障分析及处理
Analysis of turn -to -turn short circuit fault of magnetic pole coil of large hydro generator and solution
吴长敏 1蒋宜杰 1姜少斌 1刘祖高1
作者信息
- 1. 雅砻江流域水电开发有限公司 二滩水力发电厂，四川 成都 610000
- 折叠
摘要
Abstract
The generator runs under the influence of electric,thermal and mechanical stresses.If the rotors are poorly manu-factured,the turn -to -turn short circuit fault of the magnetic pole coil might occur as the operation time increases.Severe turn-to -turn short circuit of magnetic pole coil will significantly increase the rotor current and the temperature of the rotor winding and restrict the reactive power output of the generator.Meanwhile,the vibration of the generator unit will also increase and affect the safe running of the generator unit.Taking the problem of vibration and swing in the generating unit of Ertan Hydropower Sta-tion as an example,we carried out the analysis on the short circuit fault,especially on the turn -to -turn short circuit fault,and put forward the solution and countermeasures.The in -site inspection and measurement showed that the problem was solved satis-factorily.We introduced the application of AC impedance method in the analysis of the turn -to - -turn short circuit fault of magnetic pole coil of unit 3 of Ertan Hydropower Station and some attentions.关键词
磁极线圈/匝间短路/交流阻抗/水轮发电机组/二滩水电站Key words
magnetic pole coil/turn -to -turn short circuit/AC impedance/turbine generation units/Ertan Hydropower Sta-tion分类
建筑与水利引用本文复制引用
吴长敏,蒋宜杰,姜少斌,刘祖高..大型发电机组磁极线圈匝间短路故障分析及处理[J].人民长江,2016,47(13):90-92,3.
