B/ A generator having a solidly grounded neutral and rated 50 MVA, 30 kV has positive, negative, and zero sequence reactance of 25, 15, and 5 percent respectively. What reactance must be placed in generator neutral to limit the magnitude of the fault current for bolted double line to ground fault to that for bolted three phase faults?

B/ A generator having a solidly grounded neutral and rated 50 MVA, 30 kV has positive, negative, and zero sequence reactance of 25, 15, and 5 percent respectively. What reactance must be placed in generator neutral to limit the magnitude of the fault current for bolted double line to ground fault to that for bolted three phase faults?

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

Chapter9: Unsymmetrical Faults

Section: Chapter Questions

Problem 9.21P

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