Answer / ashok bhatnagar

The energy goes in friction and windage losses in running
the turbine and generator. If you load the generator more
fuel will be required to maintain the speed. If you do not
connect the load then any increase in fuel supply will
increase the turbine-generator speed.

Answer / ghanshyam_singh

quite satisfied with the previous ans. simply the speed of the rotor will increase because there is no opposing force which acts on rotor.

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