Q3/A/ For the three bus power system shown in Fig.(3), all the per unit reactances of its elements are scaled on a common MVA base and they are given as follow: G: 25 MVA, 11 kV, Xa =0.12p.u. M: 25 MVA, 6.6 kV, Xa =0.3 p.u. T1: 25 MVA, 11/66 kV, X= 0.09 p.u. T2: 25 MVA, 6.6/66 kV, X=0.08 p.u. T3: 25 MVA, 6.6/66 kV, X=0.08 p.u. Linel: 66 kV,X=0.2 pu: Line2: 66 kV, X=0.1 p.u. Bus 1 Bus 2 Bus 3 T2 Bus 4 Line 1 M uw T, Bus 5 Symmetrical three phase fault Line 2 Fig. (3) Bus 6 For a symmetrical three phase fault occurs at point F( at the mid point of line 1), find the fault current in amperes?

Q3/A/ For the three bus power system shown in Fig.(3), all the per unit reactances of its elements are scaled on a common MVA base and they are given as follow: G: 25 MVA, 11 kV, Xa =0.12p.u. M: 25 MVA, 6.6 kV, Xa =0.3 p.u. T1: 25 MVA, 11/66 kV, X= 0.09 p.u. T2: 25 MVA, 6.6/66 kV, X=0.08 p.u. T3: 25 MVA, 6.6/66 kV, X=0.08 p.u. Linel: 66 kV,X=0.2 pu: Line2: 66 kV, X=0.1 p.u. Bus 1 Bus 2 Bus 3 T2 Bus 4 Line 1 M uw T, Bus 5 Symmetrical three phase fault Line 2 Fig. (3) Bus 6 For a symmetrical three phase fault occurs at point F( at the mid point of line 1), find the fault current in amperes?

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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