单项选择题
A.slightly less than the oncoming generator frequency
B.the same as the bus frequency
C.slightly greater than the bus frequency
D.the same as the bus voltage
单项选择题 When two AC generators are being paralleled, the breaker should be closed with the synchroscope pointer mating in the （）
单项选择题 AC voltmeters are generally calibrated to read the （）
单项选择题 You are attempting to parallel two AC generators, and the syncope pointer is revolving in the fast directionThis indicates that the frequency of the incoming machine is （）.