For the system shown by a single-line diagram (Fig. Q2), calculate the three-phase fault level (in MVA) and the short circuit current (in kA) for faults at the busbars A, B, C, D, and E. Assume that all loads do not contribute to system fault level. Feeder 어 T1 T2 X = 0.10 pu on 50 MVA 100 km. 25 MW, 0.8 pf lagging X = 0.5 Q/km. base for each line 60 MVA 40 MVA 11/132 kV 132/33 kV 5 MW, 0.9 pf lagging X = 11% X = 9%

For the system shown by a single-line diagram (Fig. Q2), calculate the three-phase fault level (in MVA) and the short circuit current (in kA) for faults at the busbars A, B, C, D, and E. Assume that all loads do not contribute to system fault level. Feeder 어 T1 T2 X = 0.10 pu on 50 MVA 100 km. 25 MW, 0.8 pf lagging X = 0.5 Q/km. base for each line 60 MVA 40 MVA 11/132 kV 132/33 kV 5 MW, 0.9 pf lagging X = 11% X = 9%

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 7.23P

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