Page 144 - Solutions Manual to accompany Electric Machinery Fundamentals

(h) How much real, reactive, and apparent power is being supplied to the plant now? What is the
current I in the transmission line?
L
(i) How does the line current in part (d) compare to the line current in part (h)? Why?

SOLUTION
(a) The real and reactive power supplied by Load 1 is

P  100 kW
1

Q  P 1 tan  1  1 cos PF   100 kW tan cos  1 0.9   48.4 kvar

The real and reactive power supplied by Load 2 is

P  2 S 2  cos  80 kVA 0.8    64 kW

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