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Synchronous Motors
The induced e.m.f. in a synchronous motor working on leading power factor will be
equal to the supply voltage
None of these
less than the supply voltage
more than the supply voltage
equal to the supply voltage
None of these
less than the supply voltage
more than the supply voltage
Answer
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Related Question
Synchronous Motors
If one phase of a 3 phase synchronous motor is short circuited, motor
Will overheat in spots
Will not come upto speed
Will fail to pull into step
Will refused ro start
Will overheat in spots
Will not come upto speed
Will fail to pull into step
Will refused ro start
Answer
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Synchronous Motors
The armature current of the synchronous motor has higher values for
None of the listed here
Higher excitation only
Low excitation only
Both higher and low excitation
None of the listed here
Higher excitation only
Low excitation only
Both higher and low excitation
Answer
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Synchronous Motors
The percentage slip in case of a synchronous motor is
zero
0.01
1
0.005
zero
0.01
1
0.005
Answer
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Synchronous Motors
Change of D.C. excitation of a synchronous motor changes
Applied voltage of the motor
Any of the above
Power factor of power drawn by the motor
Motor speed
Applied voltage of the motor
Any of the above
Power factor of power drawn by the motor
Motor speed
Answer
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Synchronous Motors
The capacity of a synchronous capacitor is generally in the range of
None of the listed here
VAR
MVAR
kVAR
None of the listed here
VAR
MVAR
kVAR
Answer
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