This bachelor thesis deal with project for single-stage steam turbine specified to the steam reduction station combined thermal cycle. Involvement rotary reduction is elective, to was enough exploited steam power. For the specified parameters was proposed designed the acceptable conception of turbo-generator with a direct connection to an asynchronous generator. The most important part work is the thermodynamic calculation of the flow part whose aim is achieve maximum efficiency and operation of turbines. To increase in efficiency and on the basis engeged turns is considered using of bandage. Also is effected the choice of acceptable steam paddings