34 SourceZine30 LoadSource:Zan = Zbn = Zen = 0.1 + j1.5 QEan = 12020° v%3D%3D%3DEon = 1502 - 143.13° vEcn = 90490° vLine:ZLineA= 1 + j2 Q;ZLines= 1 - j2 Q;ZLinec= 0 + j2.2361 QLoad:Zan= 12 + j9 QZon= 12 - j9 NZen= 15 + j0 Q*Fault located on the side of the 3-phase loadFind the load line currents la , Ib , lc under unbalancedconditions1. Without the fault2. With fault

Answered: Image /qna-images/answer/f5b36764-ec93-4c96-8fa9-96a235dbcfdb.jpg

34 Source Zue 30 Load Zu Source: Zan = Zbn = Zen = 0.1 + j1.5 Q Ean = 12020° v Ebn = 1502 - 143.13° v Een = 90290° v Line: ZLineA= 1 + j2 Q; ZLineB= 1 - j2 Q; ZLinec= 0 + j2.2361 Q Load: Zan= 12 + j9 e Zon= 12 - j9 Q Zen= 15 + j0 Q

34 Source Zue 30 Load Zu Source: Zan = Zbn = Zen = 0.1 + j1.5 Q Ean = 12020° v Ebn = 1502 - 143.13° v Een = 90290° v Line: ZLineA= 1 + j2 Q; ZLineB= 1 - j2 Q; ZLinec= 0 + j2.2361 Q Load: Zan= 12 + j9 e Zon= 12 - j9 Q Zen= 15 + j0 Q

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

Chapter5: Transmission Lines: Steady-state Operation

Section: Chapter Questions

Problem 5.25MCQ

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Concept explainers

Z parameter

The Z-parameters that are the impedance parameters of a two-port network are defined by expressing the two-port voltages V1 and V2 in terms of two-port currents I1 and I2. The Z-parameters are calculated by open circuiting one of the two ports at a time henceforth they are called open-circuit impedance parameters.

Question

34 Source
Zine
30 Load
Source:
Zan = Zbn = Zen = 0.1 + j1.5 Q
Ean = 12020° v
%3D
%3D
%3D
Eon = 1502 - 143.13° v
Ecn = 90490° v
Line:
ZLineA= 1 + j2 Q;
ZLines= 1 - j2 Q;
ZLinec= 0 + j2.2361 Q
Load:
Zan= 12 + j9 Q
Zon= 12 - j9 N
Zen= 15 + j0 Q
*Fault located on the side of the 3-phase load
Find the load line currents la , Ib , lc under unbalanced
conditions
1. Without the fault
2. With fault

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