Power factor of two single phase transformers connected in V - V fashion

Q.  With a bank of two single phase transformers connected in V - V fashion supplying a balanced three phase load with Cosφ as power factor. The power factor of the two transformers is given by
- Published on 30 Oct 15

a. Cosφ , Cosφ
b. Cosφ, Cos(30+φ)
c. Cos(30-φ), Cos(30+φ)
d. Cos(30-φ), Cosφ

ANSWER: Cos(30-φ), Cos(30+φ)

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