Problem 7 Consider the circuit shown in Fig. (5) Assume that E = 1.25 p.u., and V = 1.00 p.u. 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 (2) X = 0.3 Tr G Vous = 1.0 Line 2 X =0.75 Line 3 X =0.75 X = 0.5 P.

Problem 7 Consider the circuit shown in Fig. (5) Assume that E = 1.25 p.u., and V = 1.00 p.u. 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 (2) X = 0.3 Tr G Vous = 1.0 Line 2 X =0.75 Line 3 X =0.75 X = 0.5 P.

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

Chapter4: Transmission Line Parameters

Section: Chapter Questions

Problem 4.13P: A single-phase overhead transmission line consists of two solid aluminum conductors having a radius...

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