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Synchronous Motors
A synchronous motor working at leading power factor can be used as
Phase advancer
Voltage booster
Mechanical synchronizer
Noise generator
Phase advancer
Voltage booster
Mechanical synchronizer
Noise generator
Answer
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Related Question
Synchronous Motors
Synchronous capacitor is
An ordinary static capacitor bank
None of the listed here
An over excited synchronous motor running without mechanical load
An over excited synchronous motor driving mechanical load
An ordinary static capacitor bank
None of the listed here
An over excited synchronous motor running without mechanical load
An over excited synchronous motor driving mechanical load
Answer
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Synchronous Motors
Most of the synchronous motors are _______ power factor metors.
Unity
0.5 leading
0.8 lagging
0.8 leading
Unity
0.5 leading
0.8 lagging
0.8 leading
Answer
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Synchronous Motors
A synchronous motor can be started by
Dc compound motor
Pony motor
Provinding damper winding
All of the listed here
Dc compound motor
Pony motor
Provinding damper winding
All of the listed here
Answer
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Synchronous Motors
The size of a synchronous motor decreases with the increase in
Speed
All of the listed here
Horse power rating
Flux density
Speed
All of the listed here
Horse power rating
Flux density
Answer
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Synchronous Motors
If the synchronous motor, properly synchronised to the supply is running on no load and is having negligible loss then
the stator current will be very small
the stator current will be zero
the stator current will be very high
the back e.m.f. will be more than the supply voltage
the stator current will be very small
the stator current will be zero
the stator current will be very high
the back e.m.f. will be more than the supply voltage
Answer
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