For the four bus system as shown in Fig. Determine the fault current when the fault takes place at bus no.1 with fault impedance Z =0 p.u. The Subtransient reactance of the generators and positive sequence reactance of other elements are given. Assume prefault Votage Eth= 120° p.u Generator X = j0.27p.u ; Transmission line X = j0.22p.u ; Transformer X = j0.47p.u 十章1十。 Y스 Zth in p.u Fault current lț in p.u

For the four bus system as shown in Fig. Determine the fault current when the fault takes place at bus no.1 with fault impedance Z =0 p.u. The Subtransient reactance of the generators and positive sequence reactance of other elements are given. Assume prefault Votage Eth= 120° p.u Generator X = j0.27p.u ; Transmission line X = j0.22p.u ; Transformer X = j0.47p.u 十章1十。 Y스 Zth in p.u Fault current lț in p.u

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

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.46P: The motors M1andM2 of Problem 3.45 have inputs of 120 and 60 MW, respectively, at 13.2 kV, and both...

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