A 3- phase, 4 – wire, 380 V supply is connected to an unbalanced load having phase impedances of ZR = (8 + j6) Q, ZY = (8 - j6) Q and ZB = 5 Q. Impedance ofthe neutral wire is ZN = (0.5 +j1) Q. Ignoring the impedances of line wires and intemal %3D impedances of the emfsources, find the phase currents and voltages of the load.

A 3- phase, 4 – wire, 380 V supply is connected to an unbalanced load having phase impedances of ZR = (8 + j6) Q, ZY = (8 - j6) Q and ZB = 5 Q. Impedance ofthe neutral wire is ZN = (0.5 +j1) Q. Ignoring the impedances of line wires and intemal %3D impedances of the emfsources, find the phase currents and voltages of the load.

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 3.31P

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