For a transformer, operating at constant load current, maximum efficiency will occur at
A)0.8 leading power factor
B)0.8 lagging power factor
C)zero power factor
D)unity power factor

Question

Quizplus · Accepted Answer

Maximum efficiency in a transformer at constant load current occurs at unity power factor because losses are minimized when the power factor is closest to 1.

For a Transformer, Operating at Constant Load Current, Maximum Efficiency