A synchronous motor has better power factor as compared to that of an equivalent induction motor. This is mainly because
A) synchronous motor has no slip
B) stator supply is not required to produce magnetic field
C) mechanical load on the rotor remains constant
D) synchronous motor has large airgap
Correct Answer:
Verified
Q14: In which of the following motors the
Q15: Synchronsizingpower of a synchronous machine is
A)direcly proportional
Q16: Synchronous motors are
A)not-self starting
B)self-starting
C)essentially self-starting
D)none of the
Q17: The standard full-load power factor ratings for
Q18: A synchronous motor running with normal excitation
Q20: A synchronous motor working at leading power
Q21: Slip rings are usually made of
A)carbon or
Q22: An over excited synchronous motor is used
Q23: When the voltage applied to a synchronous
Q24: The efficiency of a properly designed synchronous
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