The rotor assembly of a synchronous motor consists of an electromagnet.
Once started, DC power is applied to the winding of the electromagnet through the two slip ring/brush assemblies.
The magnetic poles of the rotor’s electromagnet locks in or with the opposite poles of the stator assembly’s rotating magnetic field:
The rotor assembly now turns at synchronous speed — at __________ slip.
A) 2
B) 1
C) none of the answers
D) zero
Show Answer
Answer:D
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