Power Machines company has completed works to ship hydrogenerator equipment destined for hydraulic unit No. 1 of RusHydro JSC’s Sayano-Shushenskaya HPP

Power Machines company completed works to ship hydrogenerator equipment destined for the hydraulic unit No. 1 of Sayano-Shushenskaya HPP (SSh HPP) operated by RusHydro JSC.

Today, two last freight trucks with generator equipment for the hydraulic unit No. 1 set off to SSh HPP. The shipment of generator equipment for the hydraulic unit No. 2 is also underway: so far, fifteen trucks have been forwarded to the plant – they carry hydrogenerator parts and components including a stator body and rotor sections. Furthermore, Power Machines manufactured and tested an upgraded excitation system for generator of the hydraulic unit No. 1 – the system is anticipated to be shipped in 2011. Works to manufacture the hydraulic turbine No. 1 (its shipment is expected to commence in January 2011) are also at their completion stage in line with preset schedule.

The contract to manufacture basic power generating equipment for the restoration of Sayano-Shushenskaya HPP was signed by Power Machines and RusHydro JSC in November 2009. Under this contract, Power Machines company is to manufacture ten hydraulic turbines and nine hydraulic generators rated at 640 MW each, as well as six excitation systems. Power Machines’ specialists will also provide installation services for the equipment supplied, including installation supervision and commissioning. The contract value amounts to RUR 11.7 bln (without VAT).

The new hydraulic units’ service life is expected to be increased up to 40 years, with the maximum turbine efficiency of 96.6%. Its power and cavitation characteristics will also be improved. The turbines will be equipped with an advanced process safeguard system, which automatically shuts down a unit in case of unacceptable mode deviations in controlled parameters.

Power Machines company has previously manufactured and supplied to the power plant a full set of spare parts and excitation system equipment sets for the hydraulic units Nos. 6, 5, and 4 for the restoration of those hydraulic units that remained relatively undamaged after the accident at SSh HPP. The company has also, ahead of the contractual terms, supplied a new hydraulic generator and an excitation system equipment set required to replace the damaged generator of the hydraulic unit No. 3, which was put into commercial use on December 22, 2010. The hydraulic units Nos. 6 and 5 were restored and put into operation ahead of the established directory time frame – in February-March 2010. In compliance with the SSh HPP restoration program approved by the RF Ministry of Energy, the hydraulic units Nos. 4 and 3 were launched in August and December 2010.