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华能澜沧江小湾水电站位于云南省南涧县与风庆县交界处的澜沧江中游河段,系澜沧江中下游河流规划的8个梯级电站的第2级,属大(Ⅰ)型一等工程,挡水建筑物为混凝土双曲拱坝,最大坝高294.5m,坝顶弧长892.8m,水库库容149×10~8m~3,电站装机容量4200MW,(6×700MW),是以发电为主,兼顾防洪,灌溉等综合效益的特大型水电工程。
Huaneng Lancang River Xiaowan Hydropower Station is located in the midstream of the Lancang River at the junction of Nanjian County and Fengqing County in Yunnan Province. It is the second level of 8 cascade hydropower stations planned for the middle and lower reaches of the Lancang River. It is a large (Ⅰ) The water dam is a concrete double-curvature arch dam with a maximum dam height of 294.5m, an arc length of 892.8m at the crest of a dam and a reservoir capacity of 149 × 10 ~ 8m ~ 3. The installed capacity of the power station is 4200MW (6 × 700MW) Take into account flood control, irrigation and other comprehensive benefits of large-scale hydropower projects.