A three-phase, four-wire system operating with a 208-V line voltage is shown in Fig. 12.71...

A three-phase, four-wire system operating with a 208-V line voltage is shown in Fig. 12.71. The source voltages are balanced. The power absorbed by the resistive wye-connected load is measured by the three-wattmeter method. Calculate:

(a) the voltage to neutral

(b) the currents I1, I2, I3 and In

(c) the readings of the wattmeters

(d) the total power absorbed by the load

Figure 12.71

For Prob.12.66.