Power transformers should be designed to have maximum efficiency________________?
Correct answer: C. at or near full load
- A. at one-fourth load
- B. at one-half load
- C. at or near full load
- D. any of the above
Explanation
Power transformers operate continuously near their rated load, so they are designed for maximum efficiency at or near full load. Distribution transformers, which spend much time lightly loaded, are instead designed for maximum efficiency near the usual average load.
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