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Transformers
Natural oil cooling is used for transformers up to a rating of
250 kVA
1000 kVA
3000 kVA
500 kVA
250 kVA
1000 kVA
3000 kVA
500 kVA
Answer
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Related Question
Transformers
The iron core is used to ______of the transformer.
Reduce core loss
None of the listed here
Increase the wight
Provide tight magnetic coupling
Reduce core loss
None of the listed here
Increase the wight
Provide tight magnetic coupling
Answer
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Transformers
The short circuit test helps us to find
Iron loss at no load
None of the listed here
Cu loss at no load
Cu loss at any desire load
Iron loss at no load
None of the listed here
Cu loss at no load
Cu loss at any desire load
Answer
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Transformers
In a transformer routine efficiency depends upon
Power factor of load
Both power factor and load current
Load current
Supply frequency
Power factor of load
Both power factor and load current
Load current
Supply frequency
Answer
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Transformers
The principle of working of transformer is
Static induction
Mutual induction
Self induction
Dynamic induction
Static induction
Mutual induction
Self induction
Dynamic induction
Answer
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Transformers
The dielectric strength of transformer oil is expected to be
33 kV
330 kV
100 kV
lkV
33 kV
330 kV
100 kV
lkV
Answer
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