The synchronous motor is not inherently self-starting because
A) the force required to accelerate the rotor to the synchronous speed in an instant is absent
B) the starting device to accelerate the rotor to near synchronous speed is absent
C) a rotating magnetic field does not have enough poles
D) the rotating magnetic field is produced by only 50 Hz frequency currents
Correct Answer:
Verified
Q9: When V is the applied voltage, then
Q10: The power developed by a synchronous motor
Q11: A synchronous motor can be used as
Q12: A synchronous motor is running on a
Q13: Mostly, synchronous motors are of
A)alternator type machines
B)induction
Q15: As the load is applied to a
Q16: Synchronous motor always runs at
A)the synchronous speed
B)less
Q17: An over-excited synchronous motor takes
A)leading current
B)lagging current
C)both
Q18: The working of a synchronous motor is
Q19: The minimum armature current of the synchronous
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