A 30 MVA, 13.2KV synchronous generator has a solidly grounded neutral. Its positive, negative and zero sequence impedances are 0.3, 0.4 and 0.05 p.u respectively What value of reactance in p.u. must be placed in the generator neutral so that the fault current for a line to ground fault shall not exceed the rated line current? O 0.65 O 0.7 0.75 0.6 0.68 0.63 O 0.8 0.79

A 30 MVA, 13.2KV synchronous generator has a solidly grounded neutral. Its positive, negative and zero sequence impedances are 0.3, 0.4 and 0.05 p.u respectively What value of reactance in p.u. must be placed in the generator neutral so that the fault current for a line to ground fault shall not exceed the rated line current? O 0.65 O 0.7 0.75 0.6 0.68 0.63 O 0.8 0.79

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 7.14P: Equipment ratings for the five-bus power system shown in Figure 7.15 are as follows: Generator G1:Â...

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