A no-load test is performed on a transformer to determine_______________?
Correct answer: E. magnetising current and loss
- A. core loss
- B. copper loss
- C. efficiency
- D. magnetising current
- E. magnetising current and loss
Explanation
At no load, the transformer input supplies the core loss and the magnetising component of current, while copper loss is negligible. Thus the test gives both magnetising current and core loss.
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