The reactive power received by the line(per phase) is(93 57) 150 var.
The real power consumed by the line due to its resistance is(200 170) 30 W 153 VA The apparent power absorbed by the line 150 Since the voltage drop across one line is 164 V, the current in the line must be 153 1.08 A E3 141 We could, of course, have measured this current directly, but a measurement of the real and reactive power and a knowledge of the voltages is sufficient to enable us to