Which one of the following statements regarding the position of minimum copper loss in a phase of rotary convertor is true ?
A. The position of minimum copper loss is in the middle of the phase whatever may be the power factor.
B. The position of minimum copper loss varies with the variation in power factor and this position is displaced from the middle of the phase by the power factor angle.
C. The position of minimum copper loss is the tapping point whatever may be the power factor.
D. None of the above.
Show Answer
Answer: B
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