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Synchronous Motors
A synchronous motor develops maximum power when load angle is
120°
60°
45°
90°
120°
60°
45°
90°
Answer
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Related Question
Synchronous Motors
A synchronous motor delivers reactive power when ______
Under excited
Over excited
Normally excited
None of the listed here
Under excited
Over excited
Normally excited
None of the listed here
Answer
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Synchronous Motors
In a synchronous motor, the rotor copper loss are met by ______
Armature input
Supply lines
Dc source
Motor input
Armature input
Supply lines
Dc source
Motor input
Answer
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Synchronous Motors
Synchronous motor always run at
The synchronous speed
More than synchronous speed
Less than synchronous speed
None of the listed here
The synchronous speed
More than synchronous speed
Less than synchronous speed
None of the listed here
Answer
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Synchronous Motors
The duration of sudden short circuit test on synchronous motor is usually about
One minute
One second
None of the listed here
One hour
One minute
One second
None of the listed here
One hour
Answer
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Synchronous Motors
A synchronous motor can operate at
Lagging, leading and unity power factors
Leading power factor
Unity power factor only
Lagging power factor only
Lagging, leading and unity power factors
Leading power factor
Unity power factor only
Lagging power factor only
Answer
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