Belver power station
| Belver power station | ||
|---|---|---|
| location | ||
|
||
| Coordinates | 39 ° 28 '47 " N , 7 ° 59' 52" W | |
| country |
 Portugal
|
|
| place | Belver , Portalegre District | |
| Waters | Tagus river | |
| Height upstream | 46.15 m | |
| power plant | ||
| operator | Energias de Portugal (EDP) | |
| construction time | 1945 to 1952 | |
| Start of operation | 1951 | |
| technology | ||
| Bottleneck performance | 80.7 megawatts | |
| Average height of fall |
15.2 m | |
| Expansion flow | 798 m³ / s | |
| Standard work capacity | 176 million kWh / year | |
| Turbines | Kaplan turbines : 6 | |
| Others | ||
The Belver power plant ( Portuguese Barragem de Belver ) is a run-of-river power plant on the Tagus . It is located in the region of central Portugal in the Portalegre district . At this point, the Tagus forms the border between the Portalegre and Santarém districts . The eponymous municipality of Belver is located about two kilometers upstream.
The project to build the power plant began in 1945. The construction was completed in 1952. The power plant is owned by HIDROTEJO .
Barrier structure
The barrier structure is a concrete gravity dam with a height of 21 (or 30) m above the foundation base . The top of the wall is at a height of 47.5 m above sea level . The length of the top of the wall is 327.5 (or 440) m. The volume of the structure is 90,000 m³.
The dam wall is divided into a machine house on the right side of the river and a weir system with flood relief , consisting of 10 gates through which a maximum of 18,000 m³ / s can be discharged. The design flood is 18,000 m³ / s.
Reservoir
With a normal storage target of 46.15 m (maximum 47.15 m at high water), the reservoir extends over an area of around 2.86 km² and holds 12.5 million m³ of water - 7.5 (or 8, 5) million m³ are used. The minimum congestion destination at which the machines can still be operated is 41 m.
power plant
With an installed capacity of 80.7 MW, the Belver power plant is one of the smaller hydropower plants in Portugal . At the time of commissioning in 1951, the power plant had an installed capacity of 32 MW; 4 machines were installed. Another machine was put into operation in 1971 and 1984. The average annual generation is 176 (or 180 or 220) million kWh .
machinery
A total of six Kaplan turbines with different capacities are installed. The following table gives an overview:
| machine | Nominal speed (1 / min) | Turbine (MW) | Generator (MVA) | Transformer (MVA) |
|---|---|---|---|---|
| 1 | 167 | 8.091 | 11 | 22nd |
| 2 | 167 | 8.091 | 11 | 22nd |
| 3 | 167 | 8.091 | 11 | 22nd |
| 4th | 167 | 8.091 | 11 | 22nd |
| 5 | 125 | 15.997 | 20th | 20th |
| 6th | 100 | 35,304 | 31 | 36.3 |
The maximum height of fall is 15.2 m. The maximum flow rate is 798 m³ / s.
The generators have a nominal voltage of 6.3 kV . In the switchgear , which is located on the right-hand side of the river, the generator voltage is increased from 6.3 kV to 63.6 kV by means of power transformers.
See also
Web links
- CHEIA NO TEJO BARRAGEM DE BELVER ORTIGA MAÇÃO DOMINGO DE PÁSCOA MARÇO 2013. Youtube, accessed on October 27, 2014 (Portuguese).
Individual evidence
- ^ Belver Informação Técnica. EDP , accessed on October 27, 2014 (Portuguese): "Tipo de aproveitamento Fio-de-água"
- ↑ a b c d e BELVER DAM. APA Barragens de Portugal, accessed October 27, 2014 .
- ↑ a b Belver dam. Structurae International Database for Structures and Civil Engineers, accessed October 27, 2014 .
- ↑ a b c d e Belver Informação Técnica. EDP , accessed October 27, 2014 (Portuguese).
- ^ Hidroelectricidade em Portugal memória e desafio. (PDF 226 KB pp. 18, 22) Rede Eléctrica Nacional, SA (REN), accessed on October 27, 2014 (Portuguese).
- ↑ a b DECLARAÇÃO AMBIENTAL 2012. (PDF 16.1 MB p. 51 (49)) EDP , accessed on November 5, 2014 (Portuguese).
