A main generator is being connected to an infinite power grid.
Which one of the following will occur if the generator output breaker is closed with generator frequency 0.1 Hz lower than power grid frequency?
(Assume that no generator protection relay actuates.)
A. The generator will motorize.
B. The generator will accept too much load.
C. The voltage of the generator will decrease to compensate for the lower frequency.
D. The entire connected system will operate at the frequency of the lowest frequency (the oncoming) generator.
Show Answer
Answer: A
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