h. Drive system
For the generated power to be smooth and consistent, the rotational speed of the shaft must be equal to
the rated rotational speed of the generator. If these two are equal, the turbine shaft is directly connected
to the shaft of the generator. This is called ‘direct coupling’. In the cases where the rotational speed
of the turbine shaft is different to the rated rotational speed of the generator or if the generator cannot
withstand additional loads developed on the turbine, a drive system is introduced in between. It can be
a belt, gear box, or coupling, etc.
Belt
Coupling
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