大型河坝发电机房内，一排水力发电水轮机展现机房中间

In the large-scale river dam generator room, a row of hydroelectric turbines is displayed in the middle of the machine room, with all the supporting facilities next to it. The hydraulic turbine is usually installed in the water turbine room under the current, supported by bearings and connected to the generator. The generator converts the rotating power of the turbine into electricity, and the whole system transmits the generated electricity to the power grid through cables.