Exam Question
Two three phase 415 V alternators supply a ship’s load comprising:
- lighting totalling 800 kW at unity power factor; and
- motors totalling 1700 kW at power factor 0.7 lag.
One alternator supplies 1400 kW at power factor 0.75 lag.
(a) Calculate EACH of the following for the other alternator: (16)
(i) the KVA output;
(ii) the power factor;
(iii) the line output current.