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二滩水电站装有６台单机容量５５０ＭＷ的机组，发电机与变压器组合采用单元接线，以４回５００ｋＶ架空线与四川电力系统联网。主要机电设备按世行采购导则进行国际招标，机组由加拿大ＧＥ公司中标，水轮机型号ＨＬＦ４９７－ＬＪ－６２５．７，发电机为半伞式，下导与推力轴承结合位于下机架上。电站按少人值班设计，以计算机监控为主，完成对全厂机电设备的监视与控制。
Ertan hydropower station equipped with six units of 550MW capacity of units, generators and transformers with unit wiring, with 4 back to 500kV overhead lines and Sichuan power system networking. The main mechanical and electrical equipment will be subject to international bidding according to the World Bank procurement guidelines. The unit is won by Canadian GE Company. The turbine type is HLF497-LJ-625.7. The generator is a half-umbrella type and the lower guide and thrust bearing are combined on the lower frame. Power station by less people on duty design, mainly to computer monitoring, complete the whole plant mechanical and electrical equipment monitoring and control.