Q2/A/ For the three bus power system shown in Fig.(2), all the per unit reactances of its elements arescaled on a common MVA base and they are given as follow:G: 50 MVA, 11 kV, Xa -0.12p.u.G2: 50 MVA, 11 kV, Xa =0.3 p.u.T: 50 MVA, 11/132kV,X= 0.05 p.u. ; T2: 50 MVA, 11/132kV,X%30.08 p.u.Linel: 132kV,X%-0.125 pu:Line2: 132 kV, X=0.15 p.u.Line3: 132kV,X=0.25 p.u.For a symmetrical three phase fault occurs at point F find the fault current in amperes?Symmetricalthree phase faultwW TIW T.Bus 1BusLine 1Class conmmTa class commLine 2Line 3Fig.(2)Bus 310.3E

Answered: Image /qna-images/answer/6ae75590-bb83-4075-87c3-f6d393ef7cdc.jpg

N For the three bus power system shown in Fig.(2), all the per unit reactances of its elements are scaled on a common MVA base and they are given as follow: G: 50 MVA, 11 kV, Xa -0.12p.u. G2: 50 MVA, 11 kV, Xa =0.3 p.u. T: 50 MVA, 11/132kV,X= 0.05 p.u. ; T2: 50 MVA, 11/132kV,X-0.08 p.u. Linel: 132kV,X=0.125 pu: Line2: 132 kV, X=0.15 p.u. Line3: 132kV,X=0.25 p.u. For a symmetrical three phase fault occurs at point F, find the fault current in amperes? G, G2 Symmetrical three phase fault wW TI wW T2 h mm Bus 1 Line 1 Bus 2 Line 2 Line 3 Fig.(2) Bus 3

N For the three bus power system shown in Fig.(2), all the per unit reactances of its elements are scaled on a common MVA base and they are given as follow: G: 50 MVA, 11 kV, Xa -0.12p.u. G2: 50 MVA, 11 kV, Xa =0.3 p.u. T: 50 MVA, 11/132kV,X= 0.05 p.u. ; T2: 50 MVA, 11/132kV,X-0.08 p.u. Linel: 132kV,X=0.125 pu: Line2: 132 kV, X=0.15 p.u. Line3: 132kV,X=0.25 p.u. For a symmetrical three phase fault occurs at point F, find the fault current in amperes? G, G2 Symmetrical three phase fault wW TI wW T2 h mm Bus 1 Line 1 Bus 2 Line 2 Line 3 Fig.(2) Bus 3

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

Chapter6: Power Flows

Section: Chapter Questions

Problem 6.52P

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