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Sayano-Shushenskaya hydroelectric power station (photos)

Author of the report — Vadim Mahora (LJ dedmaxopka)

Sayano-Shushenskaya hydroelectric power station — the largest installed capacity in power plant Russia, 7th — of the existing hydroelectric power plants in the world. More details about this unique building can read under the cut.

1. Evening lights at the Sayano-Shushenskaya HPP

  I drove there in the winter, at the invitation of "RusHydro". The main purpose of the trip was a virtual tour of the station as I did have to Novosibirsk HPP. Tour was at times steeper first station is much more interesting and more, and secondly on the tour is help more points of view, there is day and night panorama station and so on. But, unfortunately, the tour is not currently able to agree with the security station and I do not know whether it will be able to do it, there is hope for the best.

But do not let the bad. If the pan, and can not be shown, then at least I have pictures from the same places I did spheres, and more.

Sayano-Shushenskaya hydroelectric power station is located near the village of Cheryomushki (near Sayanogorsk) in the Republic of Khakassia. SSHHPP is the first in a cascade of hydropower plants of the Yenisei. Installed capacity SSHHPP — 6400 MW, the average annual output — 22.8 billion kWh of electricity. 2. Pressure front of Sayano-Shushenskaya hydroelectric power station forms a concrete arch-gravity dam — unique in size and complexity of the construction of waterworks.

The design of high-pressure arch-gravity dam is unique in the world and home practice. The height of buildings 245 m, crest length 1074.4 m, the width of the base — 105.7 m and the crest — 25 m level, it takes the form of a circular arch radius of 600 m with a central angle of 102 degrees. Dam of Sayano-Shushenskaya HPP is among the ten highest dam in the world. (Dam in Switzerland slightly higher than in, which I also wrote a blog)
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4. On the crest of the dam

The stability and strength of the dam under the pressure of the water (about 30 million tons), and is provided by its own weight (about 60%) and by passing the hydrostatic load on the rocky shore (40%). The dam is embedded in the rocky shore at a depth of 15 meters Pairing with the base of the dam in line produced a solid punch to the rock to a depth of 5 m
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6. SSHHPP service spillway.

Service spillway is designed to discharge excess water flow at high water and floods, which can not be passed through a hydroelectric power plant or accumulated in the reservoir. The maximum capacity of the service spillway at normal water level (NWL — 539 m) is 11700 m³ / s.

Spillway has 11 holes that are recessed to 60 m from the NEC and 11 spillway channel, consisting of a closed area and open the tray, which take place on the downstream face of the dam. Spillways are equipped with basic and repair gates. Socks-four-meter springboards complete the spillway, at a gathering with them water velocity is 55 m / s.
7. Reservoir SSHHPP

Hydropower dam forms a large Sayano-Shushenskaya dam seasonal regulation of the full scope of 31.34 km ², useful volume of 15.34 km ² and a length of 320 km and an area of 621 km ².

Decree of the Government of the Russian Federation of November 16, 2006 Sayano-Shushenskaya dam on the list of 70 reservoirs, which are strategic sources of drinking water, which will be located in the exclusive federal property. The use of water is for drinking and household water supply large areas of one or more subjects of the Russian Federation.
8. Shore spillway

Construction of an additional shore spillway at the Sayano-Shushenskaya hydroelectric power station was dictated by the need to improve the reliability and safety of hydraulic structures of the station. The construction allows for a complimentary pass costs up to 4000 cubic meters / sec (basic pass costs through the service spillway and sluice paths hydraulic units), and thus reduce the load on the service spillway station and provide gentle treatment in the stilling basin. Shore spillway is designed to pass extreme floods and floods of rare occurrence. In the case of the ordinary use of the coastal flood spillway is not assumed.
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10. In the photo you can see the location of the shore spillway regarding the station

11. Penstocks SSHHPP

Turbinnny water line — pressure pipeline, supply water to the hydroelectric turbines. The Sayano-Shushenskaya hydroelectric power station conduits of steel reinforced concrete. The inner diameter of 7.5 m, thickness of concrete lining — 1.5 m
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13. Transformer platform

14. Transformers

Power transformers Zaporozhye transformer increases the voltage of the generator plant 15.75 kV to 500 kV, in which electricity is transmitted to the grid with the distributor. Total 15 units of transformers. This five groups of three phases. Each group is designed for two hydro (1-2, 3-4, 5-6, etc.)

Dimensions of each transformer: length — 8,66 m, width — 3,61 m, height — 5,05 m, weight — 235 tons.
15. Turbine hall

The building hydroelectric power plant placed 10, with a capacity of 640 MW each, with a radial-axial turbines operating at design head 194 m (operating range of pressures — from 175 to 220 m). Rated speed of the turbine — 142.8 r / min, the maximum flow rate of water through the turbine — 358 m³ / s, the turbine efficiency at the optimum area — about 96% of the total mass of the turbine equipment — 1,440 tons

The manufacturer of turbines and generators generators — OJSC "Power Machines". According to the results of tests carried out on the plant already installed equipment, and hydraulic units can develop up to 720 MW of power, and is thus the most powerful of the hydroelectric power plant in Russia.

16. Several hydroelectric still under repair after an accident known to all. By 2014, the Sayano-Shushenskaya hydropower plant will be fully equipped with a completely new and modern equipment, with improved performance and complying with all safety and security requirements.

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19. Spider deck

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21. We go down a level below. Pictured huge rotating rotor. 142.8 speed rev / min.

22. Even lower. Mine turbine.

Hydraulic unit consists of two independent parts: the turbines and hydro-connected shaft. In the mine turbine we can see and do both. Under the feet of the turbine is, head over to the generator can be seen in the center of the rotating shaft. Directly under the iron floor are servos that drive the blades of the machine to regulate the amount of water supplied to the turbine wheel.
23. Shaft

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25. Even lower. Volute.

Volute is designed to supply water to the turbine guide vanes. The special shape of the chamber to reduce the cross section serves for the uniform flow distribution across the circumference of the stator.
26. Pairing the volute with penstocks. The diameter is 7.5 m This is more than the standard subway tunnel.

27. Even lower. Impeller turbine.

The impeller is coupled to the turbine shaft — rotor is radial-axial turbine, which converts energy into mechanical water flow.

Wheel weight — 145 tons, diameter — 6.77 m
28. Finally, we at the bottom. Curved suction tube that brings water to the surface in the tailrace.

29. Central control

30. Let's go back to the kinds of the station

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the end

Thank you "RusHydro" for the invitation and organization of filming!