2:40 PM O sen Chapter-6-Cons... Assignment_1 ☑ ① Chapter-7-Sym-·· | 41 1. The system shown in Figure belowis initially on no load with generators oper- ating at their rated voltage with their emfs in phase. The rating of the genera- tors and the transformers and their respective percent reactances are marked on the diagram. All resistances are neglected. The line impedance is j160 . A three-phase balanced fault occurs at the receiving end of the transmission line. Determine the short-circuit current and the short-circuit MVA. 60 MVA, 30 kV X₁₂ = 24% о Xt = 16% збо XL = 160 Ω 口 03 80to 40 MVA, 30 kV X₁₂ = 24% Xa 100 MVA 30/400 kV M₁ =0H M=0. 18 20 in exon +=0:16 آفاق واسعة

2:40 PM O sen Chapter-6-Cons... Assignment_1 ☑ ① Chapter-7-Sym-·· | 41 1. The system shown in Figure belowis initially on no load with generators oper- ating at their rated voltage with their emfs in phase. The rating of the genera- tors and the transformers and their respective percent reactances are marked on the diagram. All resistances are neglected. The line impedance is j160 . A three-phase balanced fault occurs at the receiving end of the transmission line. Determine the short-circuit current and the short-circuit MVA. 60 MVA, 30 kV X₁₂ = 24% о Xt = 16% збо XL = 160 Ω 口 03 80to 40 MVA, 30 kV X₁₂ = 24% Xa 100 MVA 30/400 kV M₁ =0H M=0. 18 20 in exon +=0:16 آفاق واسعة

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

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.15MCQ: To convert a per-unit impedance from old to new base values, the equation to be used is...

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