For the four bus system as shown in Fig. Determine the fault current when the fault takes place at the sending transformer primary winding connected bus with fault impedance Z; =j0.12 p.u. The Subtransient reactance of the generators and positive sequence reactance of other elements are given. Assume prefault Votage E= 120° p.u Generator X = j0.19p.u; Transmission line X = j0.2p.u; Transformer X = j0.32p.u G2 Zen 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 the sending transformer primary winding connected bus with fault impedance Z; =j0.12 p.u. The Subtransient reactance of the generators and positive sequence reactance of other elements are given. Assume prefault Votage E= 120° p.u Generator X = j0.19p.u; Transmission line X = j0.2p.u; Transformer X = j0.32p.u G2 Zen 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
Chapter7: Symmetrical Faults
Section: Chapter Questions
Problem 7.6P
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