Leningradsky Metallichesky Zavod (LMZ) is assembling the first production unit of the first proprietary design low-speed turbine with over 1,250 MW capacity, intended to meet the requirements of WWER-TOI innovative design project*.
At the present time, the LMZ specialists have completed the assembly of the wheel space parts of the low pressure cylinders at the low-speed turbines assembly and testing bench, and are currently installing the low pressure rotors. Completion of the turbine's assembly, followed by commencement of testing, will take place in 2021.
Previously, the line of Power Machines products for NPP was represented solely by high-speed turbines with a maximum capacity of 1,200 MW. After completion of assembly of the low-speed turbine's first production unit in 2021, and after conducting the bench testing, LMZ will become the only company in the world which manufactures steam turbines in both high-speed and low-speed configurations.
Over the long term, the characteristics of the turbine's main assemblies will allow for the creation of such a machine that may be used within a turbine unit, with a unit output capacity within the range of 1,600-1,800 MW.
Let us remember that in 2012, Power Machines commissioned a new production facility (which became a part of LMZ) specifically for the manufacture of new low-speed turbine units. Investments into construction and fit-out of this facility amounted to approx. 7 billion rubles. This facility is located in the Metallostroy settlement of Saint Petersburg.
*WWER-TOI is a typical design of a two-unit generation III+ NPP that has optimized its technical and economical parameters, complete with WWER (water-cooled water-moderated power-generating reactor) units, developed within the modern data and technological design environment.