A balanced three-phase source with grounded neutral has line-to-neutral voltages of 120 volts with an-bn-cn sequence. This source has an internal series impedance of 0.1+j1.5 ohms per phase. It supplies power to an unbalanced three-phase wye, neutral grounded, load with impedances: Zan = 40+j30; Zbn = 36-j15; Zcn = 18+j24 ohms. If there is a single-line-to-ground fault at line a load-side, what is the magnitude of the fault current in amperes?

A balanced three-phase source with grounded neutral has line-to-neutral voltages of 120 volts with an-bn-cn sequence. This source has an internal series impedance of 0.1+j1.5 ohms per phase. It supplies power to an unbalanced three-phase wye, neutral grounded, load with impedances: Zan = 40+j30; Zbn = 36-j15; Zcn = 18+j24 ohms. If there is a single-line-to-ground fault at line a load-side, what is the magnitude of the fault current in amperes?

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

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.52P: A balanced three-phase load is connected to a 4.16-kV, three-phase, fourwire, grounded-wye dedicated...

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