A main generator is about to be connected to an infinite power grid.
Generator voltage is equal to grid voltage and the synchroscope is rotating slowly in the counterclockwise direction.
The generator breaker is closed just prior to the synchroscope pointer reaching the 12 o’clock position.
Which one of the following is most likely to occur after the breaker is closed?
A. The breaker will remain closed and the generator will supply only MW to the grid.
B. Thee breaker will remain closed and the generator will supply both MW and MVAR to the grid.
C. The breaker will open due to overcurrent.
D. The breaker will open due to reverse power.
Show Answer
Answer: D
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