The second stage of restoration of the Sayano-Shushenskaya HPP

Chairman of the Board of JSC "RusHydro" Yevgeny Dod visits Sayano-Shushenskaya HPP. He noted the reliable operation of a new hydroelectric number 10, with the commissioning of which was successfully completed the second stage of the recovery station.

Rehabilitation and comprehensive modernization of the power plant is carried out in three stages. In the first (2010-2011) was restored in the least affected during the accident hydroelectric number 3, 4, 5 and 6. In the second phase (2012-2013) were installed new hydraulic power units № 1,7,8,9 and 10. During the third phase, to be completed in 2014, previously restored hydraulic units will be replaced by new ones, and launched the most affected during the accident unit number 2.
 
Hydro unit number 10 was restarted after reconstruction March 4, 2013. More than a month of operation deviations of monitored parameters have been identified, the unit runs steadily. During the reconstruction of the unit were installed new turbine and generator, electric gas generator set HEC-8C, as well as the full range of accessories. The new hydraulic unit is equipped with modern automatic control and protection, as well as a stationary system of vibration and thermal control. Hydraulic equipment passed all the necessary tests, which involved experts of the manufacturer — OJSC "Power Machines".

Evgeny Dod examined the computer room, transformer pad and building complete switchgear (GIS) station. They highly appreciated the pace and quality of work for the rehabilitation and modernization of the station complex.

At this point, the available capacity of the power plant of 3,200 MW (hydro units number 1, 7, 8, 9 and 10). Work continues at the hydroelectric bred for renovation in 2012 — 2013 years. In the crater hydroelectric number 6 completed work on the hydro-generator stator assembly is mounted saddle, work began on the kinematics of the guide vane assembly. On the hydraulic unit number 5 continues assembling the turbine cover and the stator assembly (in the crater of hydroelectric number 2). Conducted on removal of hydro-generator unit number 4.

Until the end of 2014 year will be commissioned on three hydroelectric, and all four of reduced hydroelectric (№ 3, 4, 5 and 6) will also be replaced. In 2014, the Sayano-Shushenskaya hydropower plant will be fully equipped with a completely new and modern equipment, with improved performance and compliance with all safety and security requirements. The service life of the new units is increased to 40 years, with a maximum turbine efficiency of 96.6%. Also turbines are equipped with a more efficient system of technological protection that automatically shuts down the unit in case of unacceptable deviations of monitored parameters.

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