For the four bus system as shown in Fig. Determine the fault current when the fault takes place at bus no.3 with fault impedance Z =j0.52 p.u. The Subtransient reactance of the generators and positive sequence reactance of other elements are given. Assume pre fault Voltage Eth= 120° p.u Generator X = j0.21p.u; Transmission line X = j0.27p.u; Transformer X = j0.43p.u Zeh in p.u Fault current l in p.u Fault Current contribution by the Generator G2 (Ig2)

For the four bus system as shown in Fig. Determine the fault current when the fault takes place at bus no.3 with fault impedance Z =j0.52 p.u. The Subtransient reactance of the generators and positive sequence reactance of other elements are given. Assume pre fault Voltage Eth= 120° p.u Generator X = j0.21p.u; Transmission line X = j0.27p.u; Transformer X = j0.43p.u Zeh in p.u Fault current l in p.u Fault Current contribution by the Generator G2 (Ig2)

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 5.41P

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