Power Machines developed a new low-speed turbine set for NPPs rated at over 1,200 MW

Power Machines, the market leader in large-capacity high-speed turbine sets, completed development of design project for a new 1,200 MW low-speed turbine set with a rotor running at the speed of 1,500 rpm for nuclear power plants use.

The project was presented to prospect-customers on November 10th, 2009 in Moscow. Among the presentation’s participants were representatives of Atomenergoprom OJSC, Energoatom Concern OJSC, Atomstroyexport CJSC, Atomenergoproekt OJSC (AEP, Moscow), St. Petersburg Atomenergoproekt Institute (SPbAEP), Nizhniy Novgorod Atomenergoproekt Institute (NIAEP), All-Russian Scientific Research and Design Institute for Nuclear Power Engineering (VNIIAM), Moscow Power Engineering Institute, and many others.

The thermal and mechanical equipment scope of Power Machines’ supply for a NPP turbine hall includes a 1,200 MW steam turbine and a turbine generator completed with automated control/diagnostic systems along with heat exchanger and auxiliary equipment.

The new low-speed steam turbine’s design uses a single-flow loop-type high/ intermediate pressure cylinder and two double-flow low pressure cylinders (LPCs). Length of a moving blade for the last stage of LPC rotor is 1,760 mm. The turbine’s efficiency will be over 37%, which makes it comparable with the world best analogues.

Taking into account customers' individual requests, Power Machines also offer the second version of the low-speed turbine which has 1,450-mm moving blades for the LPC last stage. This design uses a lighter and smaller low pressure cylinder, which results in reduced weight of a turbine and smaller size of a turbine plant meaning its lower cost.

The new low-speed turbine set will be equipped with hydrogen-and-water cooled turbine generators produced by Branch Electrosila of Power Machines. These new low-speed turbine generators designed for nominal rate at 1,200 MW will feature enhanced maintainability and design-integrated power reserve thus enabling an increase in the turbine set’s overall capacity achieved through its upgrade. The generator’s efficiency will be 99.04%.

According to Power Machines’ Director for Nuclear Energy, Stanislav Arkhipov, development of the low-speed turbine set, which design fully meets the standards applied to new NPPs constructed under the NPP-2006 project, will enable Power Machines to enter the large-capacity low-speed turbines market and compete with the world leaders in the power plant industry.

New products will be manufactured at Power Machines’ new production facilities. The amount of investment required for the project is estimated at the level of 6 bln roubles (including 1st Phase construction of production facility intended to manufacture large-capacity turbines). It is anticipated that by December 2013 Power Machines will be able to offer to their prospect-customers high-quality state-of-the-art equipment of large-capacity turbine sets for the use in power units constructed within the framework of the NPP-2006 project available in two design versions, either in low-speed or in high-speed.

Power Machines’ nuclear power equipment

Since 1959 Power Machines have developed and manufactured NPP equipment.

Power Machines OJSC is Russia's only company providing supply of a complete set of main equipment for the NPP turbine hall and one of the few world producers who offer 800, 1,000 and 1,200 MW high-speed turbines for NPP power units.

Equipment produced by Power Machines was installed at 27 NPPs worldwide. Over the years it has proven its high performance characteristics, operational stability and uncompromised reliability. More than twenty years history of operation at nuclear power facilities is an explicit evidence of the turbines' high reliability and efficiency.

All power-generating equipment produced by Power Machines fully meets the requirements of ISO 9001:2000 standard, which was confirmed by IQNET, TUV Cert, Lloyd's Register Quality Assurance as well as the national certification authority.

Power Machines’ scientific and technical potential as well as specialists’ skill ensures all the research and design work, equipment manufacture and follow-up services will meet the highest standards of quality.