某水电站磁极线圈温升过高现象分析及磁极改造  

Analysis of overly temperature rising of magnetic pole coil in a hydropower station and transformation of magnetic pole

作　　者：杨桂周 陈珊英 YANG Gui-zhou;CHEN Shan-ying(Toshiba Hydro Power(Hangzhou)Co.,Ltd.,Hangzhou,310020,China)

机构地区：[1]东芝水电设备(杭州)有限公司,浙江杭州310020

出　　处：《水电站机电技术》2022年第4期1-3,8,145,共5页Mechanical & Electrical Technique of Hydropower Station

摘　　要：某水电站发电机磁极线圈存在温升过高的现象,温升过高会引起线圈绝缘加速老化或直接损伤、线圈匝间短路、磁极线圈接地等事故,为确保机组安全运行,分析了磁极线圈温升偏高的原因,确认了磁极改造的方案。The generator temperature is commonly over risen in a hydropower station,which would cause accelerated aging or direct damage of coil insulation,short circuit between coil turns,pole coil grounding and other accidents.In order to ensure safe operation of the unit,this paper analyzes the reasons for the overly temperature rising of pole coil and confirms the transformation plan of pole.

关 键 词：磁极线圈 温升高 原因分析 改造方案 

分 类 号：TV738[水利工程—水利水电工程]