Do Problem 1 if the phase Impedances are changed to a 6 0 resistance in parallel with an 8 0 capacitive reactance.

Problem 1

The phase sequence for the Y-Y system in Fig. 1 is ABC.

a. Find the angles 92 and 03 for the specified phase sequence.

b. Find the voltage across each phase impedance in phasor form.

c. Find the current through each phase impedance in phasor form.

d. Draw the phasor diagram of the currents found in part (c), and show that their phasor sum is zero.

e. Find the magnitude of the line currents.

f. Find the magnitude of the line voltages.

FIG. 1 120 V