As the name implies, the start winding is only necessary for the starting of the single-phase AC motor.
Once the squirrel-cage rotor has accelerated to a point that it is operating at about __________ % of the synchronous speed of the rotating stator electromagnetic field, the start winding can be disconnected from the motor supply circuit.
A) 25
B) 75
C) 60
D) 40
Show Answer
Answer:B
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