Q2. The phase impedances of an unbalanced three phase star connected load Z = 15 230...

Transcribed Image Text:

Q2. The phase impedances of an unbalanced three phase star connected load Z = 15 230 0, Z, = 20/45 0 and Z = 20/60 Q. The zero, positive and negative sequence components of the phase currents are lo = 0, 1 = 352-65 A, and I = 302-110 A respectively. Calculate: (0) (11) (iii) (iv) The magnitude and phase angles of the phase currents I,, I, and The magnitude and phase angle of the three phase voltages V. Vy and V. The three line currents la, ly and le The current neutral current (9 marks) (6 marks) (3 marks) (2 marks) Q2. The phase impedances of an unbalanced three phase star connected load Z = 15 230 0, Z, = 20/45 0 and Z = 20/60 Q. The zero, positive and negative sequence components of the phase currents are lo = 0, 1 = 352-65 A, and I = 302-110 A respectively. Calculate: (0) (11) (iii) (iv) The magnitude and phase angles of the phase currents I,, I, and The magnitude and phase angle of the three phase voltages V. Vy and V. The three line currents la, ly and le The current neutral current (9 marks) (6 marks) (3 marks) (2 marks)