Answer / manuks

I assume that the machine we talk about is synchronized
with some power grid. In this case the machine will run at
the frequency of this grid. Any fluctuation on the part of
this machine will bring the synchronizing torque into play
and pull the machine back to synchronous speed. Now suppose
we are opening the governor valve to increase the machine
speed. The synchronous torque will immediately put more load
on the generator, to prevent it from speeding away. This
will result in an increase in its load. Any effort to
decrease the speed will result in the synch. torque removing
some load from the machine and again its speed wil remain
the same.

Answer / arvind

first we will know why governor is used in power plant is
because to maintain frequency constant, in india it is 50hz
now by opening the turbine governor valve increase the
generator load because as you load increases, the frequency
will drop and it is the most impontant thing to maitain
frequency thats why it is done.

Answer / mitesh

governor valve increase it that time generator load is
deincrease

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