Within the station building, each turbine has a semi-embedded spiral casing, and water flow is controlled via twin radial gates installed at the entrance to each penstock and designed to cut off full flow.
12.
The station building houses a single alternator and the turbine has a fully embedded spiral casing and water flow is controlled via a straight flow main inlet valve and a relief valve designed to prevent spiral casing overpressure.
13.
The station building houses a single alternator and the turbine has a fully embedded spiral casing and water flow is controlled via a straight flow main inlet valve and a relief valve designed to prevent spiral casing overpressure.
