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Synchronous Motors

Synchronous Motors
A synchronous motor can be started by

All of the listed here
Dc compound motor
Provinding damper winding
Pony motor

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Synchronous Motors
The shaft of synchronous motor is made of

Alcino
Stainless steel
Chrome steel
Mild steel

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Synchronous Motors
The mechanical power developed by a synchronous motor is independent of _________.

Applied stator voltage
Speed
Torque angle
Field excitation

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Synchronous Motors
The duration of sudden short circuit test on synchronous motor is usually about

One minute
One hour
None of the listed here
One second

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Synchronous Motors
In a synchronous motor, the rotor copper loss are met by ______

Supply lines
Motor input
Dc source
Armature input

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Synchronous Motors
The standard full-load power factor ratings for synchronous motors are

unity or zero
unity or 0.8 leading
zero or 0.8 leading
unity or 0.8 lagging

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