发电机定子绕组绝缘电阻测量的影响因素  

Factors Affecting the Measurement of Stator Insulation Resistance of Water Internal-cooled Generators

作　　者：刘浩 LIU Hao(Tianji Power Plant of Huaihu Coal Power Co.,Ltd.,Huainan 232098)

机构地区：[1]淮沪煤电有限公司田集发电厂,安徽淮南232098

出　　处：《电力安全技术》2021年第9期62-64,共3页Electric Safety Technology

摘　　要：根据水内冷发电机定子的绝缘结构及以往试验中遇到的问题,分析了温度、湿度、发电机和附属设备、极化电势、内冷水水质、汇水管屏蔽线以及汇水管接地对绝缘电阻测量的影响,旨在为同类型发电厂提供借鉴和帮助。In view of the insulation structure of water internal-cooled generator stator and the problems encountered in the past tests,analyses are carried out on the factors affecting the measurement of stator insulation resistance,including temperature,humidity,generator and auxiliaries,polarization potential,internal cooling water quality,water collecting pipe shielding wires and water collecting pipe grounding etc.,the proper measurement methods are proposed,which offers useful reference and help for power plants of the same type.

关 键 词：水内冷发电机 定子 绝缘电阻 测量方法 

分 类 号：TM623[电气工程—电力系统及自动化]