Determine the system active power, Electrical Engineering

A three-phase, 4160 V, 60 Hz, 3000 kVA generator supplies the following three phase loads:  A00 kVA at .7 pf lagging, D00 kVA at .9 pf lagging, and C50 kVA at unity pf.  Determine the system active power,  system reactive power; system apparent power, and system power factor. 

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