QUESTION 3 a) Based on circuit shown in Figure Q1, the star connected three phase supply is connected to a balanced delta connected loads. Given EAB = 415V . Assume assume positive sequence, determine: vii. magnitude and angle of all phase voltages referred to the source terminals. viii. magnitude and angle of all line currents flowing through the line impedances (Zline). ix. magnitude and angle of all phase currents flowing through the load impedances. х. draw the phasor diagram showing the line and phase current relationship xi. magnitude and angle of all line voltages at each load. xii. total apparent power, active power and the reactive power at the loads 0.2 + j0.4 Q a Zline + E AN N 36 + j27 Q B 0.2 + j0.4 2 Zjine Zline 0.2 + j0.4 N Figure Q1: Star – Delta connection circuit for three phase system

QUESTION 3 a) Based on circuit shown in Figure Q1, the star connected three phase supply is connected to a balanced delta connected loads. Given EAB = 415V . Assume assume positive sequence, determine: vii. magnitude and angle of all phase voltages referred to the source terminals. viii. magnitude and angle of all line currents flowing through the line impedances (Zline). ix. magnitude and angle of all phase currents flowing through the load impedances. х. draw the phasor diagram showing the line and phase current relationship xi. magnitude and angle of all line voltages at each load. xii. total apparent power, active power and the reactive power at the loads 0.2 + j0.4 Q a Zline + E AN N 36 + j27 Q B 0.2 + j0.4 2 Zjine Zline 0.2 + j0.4 N Figure Q1: Star – Delta connection circuit for three phase system

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.25P: Consider a single-phase electric system shown in Figure 3.33. Transformers are rated as follows:...

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