龙滩水电站700MW全空冷式发电机组定子铁芯叠装技术

Installation technology of lamination iron core for stator of 700MV full closed and circulated air cooling generator unit in Long Tan Hydropower Station

龙滩电站共安装9台单机容量为700MW的水轮发电机组,相比于三峡电站,龙滩电站机组具有运行水头高、水头变幅大等特点。尤其是发电机部分,单机700MW机组为全密闭循环空气冷却的运行方式,其安装难度和技术要求相对其他大型电站都有较大幅度的提高。本文结合龙滩电站首台机组定子铁芯的安装工作,对安装工艺的主要特点和出现的技术问题做了简要的分析和总结,以此为同类机组施工提供必要的参考。

In the Longtan Hydropower Station there are totally 9 generator units at a capacity of 700MW each,which are characterized by high operational water head and big change of water head,etc as comparing with the Three Gorges Hydropower Station,particularly that generators at 700MW each,which are full closed and circulated air cooling,demand high technical requirement and incur great difficult for their installation comparing with other large-scale hydropower stations.The article makes a brief analysis and summa...