Colbún dam
| Colbún dam | ||
|---|---|---|
| location | ||
|
||
| Coordinates | 35 ° 40 '28 " S , 71 ° 20' 43" W | |
| country |
 Chile
|
|
| place | Region VII | |
| Waters | Río Maule | |
| power plant | ||
| owner | Colbún SA | |
| operator | Colbún SA | |
| Start of planning | 1979 | |
| construction time | 1981 to 1985 | |
| Start of operation | 1985 | |
| technology | ||
| Bottleneck performance | 474 megawatts | |
| Standard work capacity | 1,542 to 3,452 million kWh / year | |
| Turbines | 2 Francis turbines | |
| Others | ||
The Colbún dam or the Colbún power plant ( Spanish Central [hidroeléctrica] Colbún ) is a hydroelectric power plant in Chile . The dam dams the Río Maule into a reservoir (Spanish: Lago Colbún ). It is located in Region VII , about 40 km southeast of the city of Talca . The Machicura dam is about 6 km southwest and the Pehuenche dam about 20 km southeast of Colbún.
The project to build the dam began in 1983 (or 1981). Damming began in December 1984 and was completed by March of the following year. The Colbún power plant went into operation in June 1985. It is owned and operated by Colbún SA .
Barrier structure
The barrier structure consists of a main dam with a height of 118 m as well as three further dams (span. Pretiles ). The length of the dam crest of the main dam is 540 m. The main dam has a flood relief with four gates.
In order to be able to build the dams, two parallel diversion tunnels were created in January 1981, with a height of 16 m, a width of 13 m and a length of 800 and 875 m respectively.
Reservoir
When fully blocked , the reservoir extends over an area of around 46.6 (or 57) km² and holds 1.49 billion m³ of water.
power plant
With an installed capacity of 474 (or 400 or 478) MW , the Colbún power plant is one of the largest hydropower plants in Chile (as of April 2015). The average annual production fluctuates with the water flow of the Río Maule: it was 1.542 billion kWh in 2010 and 3.452 billion kWh in 2006.
The two machines in the power plant went into operation in June 1985. They are located in an underground machine house 100 m underground. A tunnel with a length of 2.6 km connects the dam with the power plant. The two Francis turbines were supplied by Voith and the generators by Siemens . The turbines have an output of 200 MW each.
After the water has passed the Colbún power station, it is fed into the reservoir of the Machicura dam .
See also
Individual evidence
- ↑ a b c d e f g Colbún. (PDF; 2.2 MB) www.memoriachilena.cl, accessed on April 18, 2015 (Spanish).
- ↑ a b Historia. (No longer available online.) Colbún SA, archived from the original on April 14, 2015 ; Retrieved April 18, 2015 (Spanish).
- ^ A b Visita la Central Hidroeléctrica Colbún y conoce la Casa de la Energía. Colbún SA, accessed April 18, 2015 (Spanish).
- ↑ a b c d Colbun Hydroelectric Power Plant Chile. Global Energy Observatory, accessed April 18, 2015 .
- ↑ Colbun. (No longer available online.) Colbún SA, archived from the original on April 21, 2015 ; Retrieved April 18, 2015 (Spanish).
- ↑ a b SIC electricity production. www.centralenergia.cl, accessed on April 18, 2015 (Spanish).