渔子溪电站4号水轮发电机改造

Transformation of 4#Hydro-generator in Yuzixi Hydropower Station

渔子溪电站4号机组从1972年投产至2018年实施发电机改造,运行时间长达46年,且先后两次因自然灾害被污水浸泡,发电机主要部件锈蚀严重,定子端部绝缘出现受损情况,发电机使用寿命达到国家规定标准。本文重点介绍了渔子溪电站4号机组发电机改造的必要性、改造范围及改造技术方案,并对改造效果进行了分析。

The 4#generator unit of Yuzixi Hydropower Station was put into operation since 1972 until the generator transformation in 2018,with operation time of 46 years,and it was soaked in sewage twice due to natural disasters.The main parts of the generator were severely rusted,the insulation at the end of the stator was damaged,and the service life of the generator reached the time limit of the national standard.This paper focuses on the necessity,scope and technical scheme of the transformation of the generator in Yuzixi Hydropower Station,and analyzes the transformation effect.