单项选择题
The division of kilowatt load between two paralleled alternators is determined by the ()
A.amount of field excitation of the leading machine B.load-speed characteristics of the governors C.amount of field excitation to the lagging machine D.type of alternator
单项选择题 The division of the kilowatt load between two AC generators operating in parallel is controlled by the settings and characteristics of the ().
单项选择题 In a three-phase circuit, the phase voltages are ()
单项选择题 The frequency of an alternator at a given RPM is determined by the ().