Question: Two 550 kVA alternator operate in parallel to supply the following loads I. 250 KW at 0.95 p.f. lagging II. 100 KW at 0.85

Two 550 kVA alternator operate in parallel to supply the following loads

Two 550 kVA alternator operate in parallel to supply the following loads I. 250 KW at 0.95 p.f. lagging II. 100 KW at 0.85 p.f. leading One machine is supplying 200 KW at 0.9 p.f. lagging. The p.f. of other machine must be (a) 0.89 leading (b) 0.95 leading (c) 0.95 lagging (d) 0.89 lagging

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