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Transformers
The transformer that should never the secondary open circuited when primary is energised is _______
Power transformer
Auto transformer
Voltage transformer
Current transformer
Power transformer
Auto transformer
Voltage transformer
Current transformer
Answer
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Related Question
Transformers
Cores of large transformers are built upto nearly circular cross section in order to reduce
Eddy current loss
Iron losses
Copper loss
Leakage reactance
Eddy current loss
Iron losses
Copper loss
Leakage reactance
Answer
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Transformers
The power transformer is a constant
Current device
Power device
Voltage device
Main flux device
Current device
Power device
Voltage device
Main flux device
Answer
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Transformers
Noise level test in a transformer is a
None of these
routine test
type test
special test
None of these
routine test
type test
special test
Answer
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Transformers
Which of the following is not a part of transformer installation?
Conservator
Breather
Buchholz relay
Exciter
Conservator
Breather
Buchholz relay
Exciter
Answer
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Transformers
The permissible flux density in case of cold rolled grain oriented steel is around
1.7 Wb/m²
2.7 Wb/m²
3.7 Wb/m²
4.7 Wb/m²
1.7 Wb/m²
2.7 Wb/m²
3.7 Wb/m²
4.7 Wb/m²
Answer
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