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单选题
Voltage generated by most AC generators is fed from the machine to the bus by means of（）.
A
brushes on a commutator
B
brushes on slip rings
C
slip rings on a commutator
D
direct connections from the stator
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单选题Generators should have an excitation/voltage regulation system which will enable them to share the steady state reactive load （） no machine exceeds its proportional share of reactive load by more than 10% of the rated reactive load of the largest generator.A
whenB
so asC
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bus neutral positionC
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transfer position
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reverse power relay
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