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RusHydro

April 8, 2010

JSC Power Machines completes the model testing of the new turbine at the Sayano-Shushenskaya HPP

At the JSC Power Machines subsidiary Leningrad Metal Works, acceptance tests have been completed of a scale model of the new Sayano-Shushenskaya HPP hydro-turbine.

Representatives of JSC RusHydro, headed by Deputy Department Head for planning of repairs, upgrading and reconstruction Dmitriy Kaplaty, took part in the testing of the hydro-turbine model on a scale of 1:15. A representative of JSC NPO I. Polzunov TsKTI attended as expert.

The set of model tests confirmed the high quality and exceptional operating safety of the new hydro-turbine. The JSC RusHydro representatives noted the high standard of testing organisation, as well as the absolute compliance by all the results achieved with the declared parameters. In particular, on the basis of calculations made in accordance with the size effect methodology, the test results demonstrated that the guaranteed maximum capacity of the Sayano-Shushenskaya HPP hydro-turbines is provided for with a clear margin and comply with the terms of reference.

During the last stage of the testing, the model unit was partially disassembled and the dimensions of the wheel space checked, this demonstrating total geometric compliance of the model with the parameters of the full-size turbine.

Power Machines and JSC RusHydro concluded the contract for manufacture of the main power equipment for restoration of the Sayano-Shushenskaya HPP in November 2009. Under the contract, Power Machines is to produce 10 hydro-turbines and hydro-generators with a capacity of 640 MW each, as well as six excitation systems. In addition, Power Machines experts will provide installation supervision services and carry out pre-commissioning work. The sum of the contract amounts to 11.7 billion roubles (exclusive of VAT).

Power Machines has now developed and handed over the part of the technical design to be approved by the customer. The service life of new hydro-units has been increased to 40 years and their efficiency coefficient is 96.6 %. The turbines will be equipped with more effective protection, providing for automatic switch-off if they go beyond the maximum operating parameters.

 

 

 

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