Problem + Hard 85-1    Source:  problem prepared by the author of the site.

In the circuit of the Figure 85-1.1 we have V_ab = 440∠30° V, V_bc = 440∠150° V , V_ca = 440∠-90° V, ie an inverse sequence,  and   Z = 45 + j 26. Calculate:

a) the line currents.

b) the source line voltages.

c) the reading on the two wattmeters and the total power.

d) the reactive power.

e) the apparent power.