The most common source of excitation for s
题型:单项选择题
问题:
The most common source of excitation for synchronous motors is a/an ().
A.low voltage battery
B.motor attenuator set
C.DC exciter generator
D.AC supply
The most common source of excitation for synchronous motors is a/an ().
A.low voltage battery
B.motor attenuator set
C.DC exciter generator
D.AC supply