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Synchronous Motors

Synchronous Motors
The capacity of a synchronous capacitor is generally in the range of

MVAR
None of the listed here
kVAR
VAR

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Synchronous Motors
In a 3-phase synchronous motor, the negative phase sequence exists when the motor is

None of these
supplied with unbalanced voltage
under-loaded
over-loaded

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Synchronous Motors
The percentage slip in case of a synchronous motor is

0.005
1
zero
0.01

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Synchronous Motors
The back emf in the stator of a synchronous motor depends on

Rotor excitation
None of the listed here
Flux density
Rotor speed

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Synchronous Motors
A synchronous motor is a ______ motor.

Variable pf
None of the listed here
Singly fed
Variable speed

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Synchronous Motors
Hunting in a synchronous motor cannot be due to

variable supply voltage
windage friction
variable frequency
variable load

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