3 phase load

Two wattmeters are connected to measuring power in a 3 phase balanced load. Determine the total power and power factor if the two wattmeters read 1000 watts each (1) both positive and (2) second reading is negative.

Correct answer:

P1 =  2000 W
f1 =  1
P2 =  0 W
f2 =  0

Step-by-step explanation:

P11=1000 W P21=1000 W  P1=P11+P21=1000+1000=2000 W
P12=1000 W P22=1000 W  P2=P12+P22=1000+(1000)=0 W



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