A transformer can have zero voltage regulation at______________?
Correct answer: A. leading power factor
- A. leading power factor
- B. lagging power factor
- C. unity power factor
- D. zero power factor
Explanation
The resistive voltage drop and reactive voltage drop can cancel when the load power factor is leading, giving zero regulation. More precisely, the leading angle must satisfy the cancellation condition, so merely being leading is a simplified statement.
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