In a modern three-phase A.C. synchronous brushes g
In a modern three-phase A.C. synchronous brushes generator, the excitation winding is on the rotor. That means .
A.The generator need not excitation.
B.The winding on the rotor is for inputting excitation current.
C.There are three phase windings on the rotor.
D.The generator has no brushes.
请帮忙给出正确答案和分析，谢谢！
参考解答
407***780
2024-06-15 01:25:54
正确答案：B
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