Determine the short-circuit current ISC3,0.4kV for a 3-phase short- circuit fault at F. Give your answer up to 2 decimal in kA but do not enter the unit in your answer. Transformer T1 Transformer T2 Cable C1 Isc3,6.6kV Isc3.0.4kV j0.150 2 MVA 22/6.6 kV 1 MVA 6.6 kV/400V Z=3% 25 MVA fault level 6.6 kV switchboard 400 V switchboard

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 3.10P: A single-phase step-down transformer is rated 13MVA,66kV/11.5kV. With the 11.5 kV winding...
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Determine the short-circuit current ISC3,0.4kV for a 3-phase short-
circuit fault at F. Give your answer up to 2 decimal in kA but do not
enter the unit in your answer.
Transformer T1
Transformer T2
Cable C1 Isc3,6.6kV
Isc3.0.4kV
O
+
j0.150
F
1 MVA
2 MVA
22/6.6kV
25 MVA fault level
6.6 kV/400V
Z=3%
6.6 kV
switchboard
400 V
switchboard
Transcribed Image Text:Determine the short-circuit current ISC3,0.4kV for a 3-phase short- circuit fault at F. Give your answer up to 2 decimal in kA but do not enter the unit in your answer. Transformer T1 Transformer T2 Cable C1 Isc3,6.6kV Isc3.0.4kV O + j0.150 F 1 MVA 2 MVA 22/6.6kV 25 MVA fault level 6.6 kV/400V Z=3% 6.6 kV switchboard 400 V switchboard
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