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Synchronous Motors
The net armature voltage of a synchronous motor is equal to the
vector sum of Eb and V
arithmetic sum of Eb and V
vector difference of Eh and V
arithmetic difference of Eb and V
vector sum of Eb and V
arithmetic sum of Eb and V
vector difference of Eh and V
arithmetic difference of Eb and V
Answer
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Related Question
Synchronous Motors
Synchronous capacitor is
An ordinary static capacitor bank
An over excited synchronous motor driving mechanical load
None of the listed here
An over excited synchronous motor running without mechanical load
An ordinary static capacitor bank
An over excited synchronous motor driving mechanical load
None of the listed here
An over excited synchronous motor running without mechanical load
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
kVAR
MVAR
None of the listed here
VAR
kVAR
MVAR
Answer
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Synchronous Motors
The back e.m.f. of a synchronous motor depends on
speed
All of these
load angle
load
speed
All of these
load angle
load
Answer
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Synchronous Motors
An over excited synchronous motor is used for
Power factor corrections
Low torque loads
Variable speed loads
Fluctuating loads
Power factor corrections
Low torque loads
Variable speed loads
Fluctuating loads
Answer
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Synchronous Motors
The operating speed of a synchronous motor can be changed to new fixed value by
changing the load
changing frequency
using brakes
changing the supply voltage
changing the load
changing frequency
using brakes
changing the supply voltage
Answer
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