大型水内冷发电机定子线棒绝缘状态评估方法  

Evaluation Method for Insulation Status of Stator Bars in Large-scale Internal Water-cooling Generators

作　　者：张敏[1] 梅林浩 肖惜 ZHANG Min;MEI Linhao;XIAO Xi(Three Gorges Hydropower Plant,China Yangtze Power Co.,Ltd.,Yichang 443000,China)

机构地区：[1]中国长江电力股份有限公司三峡水力发电厂,湖北宜昌443000

出　　处：《水电与新能源》2025年第3期65-67,71,共4页Hydropower and New Energy

摘　　要：水内冷发电机定子线棒是发电机的重要组成部分,其绝缘性能直接关系到发电机安全运行。鉴于目前定子线棒及汇流环绝缘状态评估方法的不足,基于绝缘性能诊断试验及微观相形态分析,提出了一种水内冷发电机定子线棒、汇流环及绝缘引水管绝缘状态评估方法,为综合判断发电机定子线棒绝缘状态提供了一种有效途径。The stator bars of internal water-cooling generators are important components of the generators.Their insulation performance directly affects the safe operation of the generators.The current evaluation methods for the insulation status of the stator bars are of certain problems.Based on insulation performance diagnosis tests and microscopic phase analysis,a method for evaluating the insulation status of the stator bars,slip rings,and insulated conduits is proposed.It provides an effective approach for the comprehensive judgement of the insulation status of stator bars in generators.

关 键 词：绝缘状态评估 线棒 全生命周期管理 

分 类 号：TV734[水利工程—水利水电工程]