Ertan Dam
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Ertan Dam | |
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TWh |
The Ertan Dam (
The dam has six
The Ertan Dam was designed by the China Hydropower Engineering Consulting Group Survey and Design Institute in Chengdu, and was constructed and is currently operated by Ertan Hydropower Development Company Limited, the owners of the dam. The company is invested by State Development and Investment Company (52% share) and Sichuan Chuantou Energy Limited (48% share).
Design
The Ertan Dam is a 240 m (787 ft) high and 774.7 m (2,542 ft) long double-curvature arch dam. The dam withholds a normal reservoir of 5,800,000,000 m3 (4,702,137 acre⋅ft) with a drainage area of 116,400 km2 (44,942 sq mi) and normal surface area of 101 km2 (39 sq mi). The dam has four different ways to discharge water downstream. First, the dam's
Main Features
Source:[3]
Project Location | On the Yalong River, Sichuan province,
P. R. China |
Project Purpose | Hydroelectric Power Generation |
Years of Construction | 1987-1999 |
Construction of Main Dam | |
Type | Double-curvature Arch Dam |
Height | 240 m |
Crest Length | 774.69 m |
Construction of Power plant | |
Maximum gross head | 189 m |
Installed Capacity | 6×550 MW (Francis) |
Power Conduits | 6 steel embedded in concrete
I.D.=9.0 m |
Catchment and Reservoir | |
Catchment Area | 116,400 km2 |
Mean Annual Runoff | 1,670 m3/s |
Reservoir Area at FSL | 101 km2 |
Storage at FSL | 5,800 million m3 |
Active Storage | 3,370 million m3 |
Discharge Capacity | |
Crest Outlet | 7 / 6,260 m3/s |
Mid Level Outlet | 6 / 6,930 m3/s |
Bottom Outlet | 4 / 2,084 m3/s |
Flood Discharging | 2 / 7,400 m3/s |
Project Developers | |
Owner | Ertan Hydropower Development |
Designer | CHIDI,
now POWERCHINA Chengdu |
Contractor | EJV, SGEJV, GYBD |
Main Equipment Suppliers | |
Turbines | GE Canada, Dongfang Electrical
Machinery Co, Ltd., Harbin Electric Machinery Co, Ltd. |
Generators & HV
Electrical |
GE Canada, Dongfang Electrical
Machinery Co, Ltd., Harbin Electric Machinery Co, Ltd. |
Gates &
Hydromechanical |
Jiajiang Hydraulic Machinery Works,
China Gezhouba (Group) Corporation, Sinohydro Bureau No.8, |
See also
References
- ^ Ertan Hydroelectric Dam
- ^ "我国西部的最大水电站二滩水电站全面建成投产". Archived from the original on 2011-05-07. Retrieved 2008-02-09.
- ^ a b c "Ertan Hydropower Project" (PDF). Chinese National Committee on Large Dams. Retrieved 8 January 2011.