Sumpner's test is conducted on transformers to determine_____________?
Correct answer: A. temperature
- A. temperature
- B. stray losses
- C. all-day efficiency
- D. none of the above
Explanation
Sumpner’s, or back-to-back, test subjects two identical transformers to full-load conditions and is used to determine temperature rise as well as losses and efficiency. Among the listed choices, temperature is the intended result.
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