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Synchronous Motors
An important advantage of a synchronous motor over wound round induction motor is that
None of these
its speed may be controlled more easily
its power factor may be varied at will
its speed is independent of supply frequency
None of these
its speed may be controlled more easily
its power factor may be varied at will
its speed is independent of supply frequency
Answer
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Related Question
Synchronous Motors
A synchronous motor runs at speed ranging from ______
1800 to 3600 rpm
3600 to 6000 rpm
150 to 1800 rpm
None of the listed here
1800 to 3600 rpm
3600 to 6000 rpm
150 to 1800 rpm
None of the listed here
Answer
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Synchronous Motors
Hunting in a synchronous motor cannot be due to
windage friction
variable load
variable supply voltage
variable frequency
windage friction
variable load
variable supply voltage
variable frequency
Answer
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Synchronous Motors
The duration of sudden short-circuit test on a synchronous motor is usually about
one second
one hour
None of these
one minute
one second
one hour
None of these
one minute
Answer
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Synchronous Motors
The capacity of a synchronous capacitor is generally in the range of
kVAR
MVAR
None of the listed here
VAR
kVAR
MVAR
None of the listed here
VAR
Answer
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Synchronous Motors
The size of a synchronous motor decreases with the increase in
Horse power rating
Flux density
Speed
All of the listed here
Horse power rating
Flux density
Speed
All of the listed here
Answer
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