预测大电机绝缘寿命方法综述  

Methods for Insulation Life Estimation of Large Electrical Machines

作　　者：张蕊[1] 严璋[1] 

机构地区：[1]西安交通大学电气工程学院,陕西西安710049

出　　处：《大电机技术》2004年第4期41-43,71,共4页Large Electric Machine and Hydraulic Turbine

摘　　要：大电机绝缘寿命预测的困难在于如何根据各种测得的参数及其变化趋势预测残余击穿电压。以一台30MVA,11kV发电机的绝缘寿命预测为例,介绍了如何根据机组各方面历史资料的分析,并结合基于多个检测参数的分析方法来预测电机绝缘寿命。The difficulty to estimate insulation life of large electrical machin es lies in how to estimate residual breakdown voltage according to various param eters measured. An example for estimating the insulation life of a 30MVA,11kV g enerator was stated to describe the method based on multi-parameter analysis of current and historical data.

关 键 词：大电机 预测 绝缘参数 绝缘寿命 击穿电压 定子绕组 

分 类 号：TM31[电气工程—电机]