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Transformers
The open circuit test on a transformer is always made on ______
None of the listed here
High voltage winding
Low voltage winding
Either low or high voltage winding
None of the listed here
High voltage winding
Low voltage winding
Either low or high voltage winding
Answer
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Related Question
Transformers
No-load on a transformer is carried out to determine
magnetising current and loss
efficiency of the transformer
copper loss
magnetising current
magnetising current and loss
efficiency of the transformer
copper loss
magnetising current
Answer
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Transformers
The power transformer is a constant
Main flux device
Voltage device
Current device
Power device
Main flux device
Voltage device
Current device
Power device
Answer
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Transformers
The main reason for generation of harmonics in a transformer could be
poor insulation
mechanical vibrations
saturation of core
fluctuating load
poor insulation
mechanical vibrations
saturation of core
fluctuating load
Answer
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Transformers
The noise produced by a transformer is termed as
zoom
hum
ringing
buzz
zoom
hum
ringing
buzz
Answer
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Transformers
Which of the following transformer is smallest?
2kVA, 50 Hz
2kVA, 400 Hz
2kVA, 200 Hz
2kVA, 500 Hz
2kVA, 50 Hz
2kVA, 400 Hz
2kVA, 200 Hz
2kVA, 500 Hz
Answer
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