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Transformers
Power transformers are generally designed to have maximum efficiency around
10% overload
no-load
half-load
near full-load
10% overload
no-load
half-load
near full-load
Answer
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Related Question
Transformers
The approximate efficiency of a large transformer is
95%
65%
80%
50%
95%
65%
80%
50%
Answer
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Transformers
The power efficiency of a lightning transformer is always ______its all day efficiency.
Higher than
None of the listed here
Less than
Equal to
Higher than
None of the listed here
Less than
Equal to
Answer
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Transformers
The output current corresponding to the maximum efficiency for a transformer having core loss of 200 W and equivalent resistance referred to secondary of 0.5 Ω is
10 A
15 A
20 A
5 A
10 A
15 A
20 A
5 A
Answer
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Transformers
Which of the following parts of a transformer is visible from outside?
Primary winding
Secondary winding
Bushings
Core
Primary winding
Secondary winding
Bushings
Core
Answer
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Transformers
A transformer is an efficient device because it _______
Uses capacitive coupling
Uses electric coupling
Uses inductive coupling
Is a static device
Uses capacitive coupling
Uses electric coupling
Uses inductive coupling
Is a static device
Answer
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