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1. The turbine
1.1 Design, manufacture, operation
The turbine transforms the thermal energy of the steam coming from the SGs into mechanical energy. It is divided into several casings in which the steam gradually expands: a high- and medium-pressure casing (HP casing) and two or three low-pressure casings with tappings. The total length of a machine is between 40 and 60 metres, and its mass between 2,000 and 3,500 tonnes (figure
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