You are attempting to parallel two A

单选题 You are attempting to parallel two AC generators and the synchroscope pointer is revolving in the slow direction. This indicates that the frequency of the incoming machine is _____ .（2.0）

A、 higher than th

B、 bus frequency

C、 lower than th

D、 bus frequency

E、 th

F、 sam

G、 as th

H、 bus frequency but out o

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