A synchronous motor running with normal excitation adjusts to load increases essentially by increase in
A) back e.m.f.
B) armature current
C) power factor
D) torque angle
Correct Answer:
Verified
Q13: When the stator windings are connected in
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
Q19: A synchronous motor has better power factor
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
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