Problem 7 Consider the circuit shown in Fig. (5) Assume that E = 1.25 p.u., and V 1.00 p.u. %3D a- Assume that the active component of the load on the circuit is 0.6 p.u. Find the initial power angle 8. b- With the value of the load set at 0.6 p.u., a three-phase short circuit takes place in the middle of transmission line 1. Will the system be stable under a sustained fault?. c- Assume that the active component of the load on the circuit is 0.3 p.u. Find the initial power angle d. d- With the value of the load set at 0.3 p.u., a three-phase short circuit takes place in the middle of transmission line 1. Will the system be stable under a sustained fault? Line 1 X =0.75 X = 0.3 G Tr Vous = 1.0 Line 2 X =0.75 Line 3 X =0.75 = 0.5 P. Figure (5) Circuit for Problem (7)

Problem 7 Consider the circuit shown in Fig. (5) Assume that E = 1.25 p.u., and V 1.00 p.u. %3D a- Assume that the active component of the load on the circuit is 0.6 p.u. Find the initial power angle 8. b- With the value of the load set at 0.6 p.u., a three-phase short circuit takes place in the middle of transmission line 1. Will the system be stable under a sustained fault?. c- Assume that the active component of the load on the circuit is 0.3 p.u. Find the initial power angle d. d- With the value of the load set at 0.3 p.u., a three-phase short circuit takes place in the middle of transmission line 1. Will the system be stable under a sustained fault? Line 1 X =0.75 X = 0.3 G Tr Vous = 1.0 Line 2 X =0.75 Line 3 X =0.75 = 0.5 P. Figure (5) Circuit for Problem (7)

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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