Hello everyone.I need to finish my homework but I am bit confused here. I have solution manual for Fitzgerald, Electric Machinery but I didn't get the solution for that question. Any help please, I will appreciate it.

Edit:
Solution:

why P directly used to find the Iload? I used S(P/pf) which is apparent power. So I am confused and I didnt get the part c also

Edit:
Solution:

why P directly used to find the Iload? I used S(P/pf) which is apparent power. So I am confused and I didnt get the part c also
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