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二滩水电站是我国目前在建的最大水电站,工程是以发电为主的综合利用水利枢纽,水库正常蓄水位1200m高程,总库容58亿m~3。枢纽由高240m的双曲拱坝、右岸泄洪隧洞、左岸地下厂房系统及过木机隧道组成,厂房内安装6台55万kW的水轮发电机组。电站总装机容量330万kW,年发电量17000GWh。自1991年9月14日发布开工令以来,工程进展顺利,目前正在加紧两岸导流洞顶拱扩挖工作。
Ertan Hydropower Station is the largest hydropower station currently under construction in China. The project is a hydroelectric comprehensive utilization project mainly based on power generation. The reservoir has a normal water level of 1200m and a total capacity of 5.8 billion m 3. The hub consists of a double curved arch dam with a height of 240m, a right bank spillway tunnel, an underground powerhouse system on the left bank, and a tunnel through a wooden engine. Six 550MW hydroelectric generating units are installed in the plant. The total installed capacity of power plants is 3.3 million kW and annual power generation is 17000GWh. Since the issuance of the start-up order on September 14, 1991, the project has progressed smoothly and the work of expanding the roof of the diversion tunnel on both sides of the Taiwan Strait is being stepped up.