科学管理科学施工二滩水电站创年安装4台巨型机组新记录

二滩水电站装有６台单机容量为５５万ｋＷ的混流式水轮发电机组。从１９９６年１月第１台机组座环开始安装到１９９８年１１月实现２台机组并网发电：１９９９年３，５，９月又有３台机产发电，最后１台预计１９９９年底投产发电。６台机共提前发电约６５０ｄ，开创了全国水电机组安装史上年安装４台巨型机组的新记录。他们所采取的措施是；（１）主机埋件安装紧跟土建进度；（２）实施阶梯式流水作业；（３）定子组装全部在机坑内进

Ertan Hydropower Station: four large-sized hydrogenerating units were installed in one year

The Ertan Hydropower Station will have six mixed flow hydrogenerating units with an installed capacity of 550 MW each. The first generating unit was started to install its supporting ring in the January of 1996. In the November of 1998, two generating units were put into generation. In the March, May and September of 1999, three generating units were also put into generation. And it is expected that the last generating unit will be put into generation by the end of 1999. Six generating units operate about 650d ahead of time, which creates a new record of hydrogenerating unit installation in China. The adopted measures are as follows. (1) The installation of embedded parts of main machines is simultaneously with the progress of civil construction. (2) The step by step assembly line production was implemented. (3) The assembly of stator was wholly conducted in the machine pit. (4) Two rotor assembly rooms were set up in the erection bay. (5) The construction coordination and the link up between working procedures were strengthened. (6) The equipment supply was completed ahead of time. All these experience could be learned and used for reference.