A main generator is being paralleled to the power grid.
Generator voltage has been properly adjusted and the synchroscope is rotating slowly in the clockwise direction.
The generator breaker must be closed just as the synchroscope pointer reaches the 12 o’clock position to prevent…
A. motoring of the generator, due to unequal frequencies.
B. excessive MW load transfer to the generator, due to unequal frequencies.
C. excessive MW load transfer to the generator, due to out-of-phase voltages.
D. excessive arcing within the generator output breaker, due to out-of-phase voltages.
Show Answer
Answer: D
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