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Q7. Two three phase 415 V alternators supply a ship’s load comprising:

(1) Lighting totalling 800 kW at unity power factor; and

(2) Motors totalling 1700 kW at power factor 0.7 lag.

One alternator supplies 1400 kVA at power factor 0.75 lag.

(a) Calculate each of the following for the other alternator:

(i) The kVA output; (ii) The power factor; (iii) The line output current. (16)