S-turbine type Semi-Kaplan

Regulation of the runner, runner blades fixed. Belongs to most frequently used machine for newly constructed small head hydropower plants. It is also used in the renovation of older plants originally equipped with vertical Francis turbines, which often achieves a better flow usage. The advantage is low cost of the construction part.

Installation is ether with the transfer belt or directly connected to the generator. To shutdown of the turbine gravitational plate closing on the input is used.