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Transformers
Cores of large transformers are built upto nearly circular cross section in order to reduce
Leakage reactance
Iron losses
Eddy current loss
Copper loss
Leakage reactance
Iron losses
Eddy current loss
Copper loss
Answer
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Related Question
Transformers
The short circuit test helps us to find
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
Iron loss at no load
None of the listed here
Cu loss at no load
Answer
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Transformers
A common method of colling a power transformer is
Natural air cooling
Any of the listed here
Air blast cooling
Oil cooling
Natural air cooling
Any of the listed here
Air blast cooling
Oil cooling
Answer
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Transformers
Transformer breaths in when
load on it increases
None of these
load on it decreases
load remains constant
load on it increases
None of these
load on it decreases
load remains constant
Answer
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Transformers
No-load current of a transformer has
has small magnitude and low power factor
has high magnitude and high power factor
has high magnitude and low power factor
has small magnitude and high power factor
has small magnitude and low power factor
has high magnitude and high power factor
has high magnitude and low power factor
has small magnitude and high power factor
Answer
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Transformers
The eddy current loss in a transformer is directly proportional to _______.
Square of thickness of core lamination
The supply frequency
Thickness of core lamination
The flux density in the core
Square of thickness of core lamination
The supply frequency
Thickness of core lamination
The flux density in the core
Answer
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