A network is composed of the utility having Ssc=250MVA, and an 2000KVA transformer, rated at 20KV/400V (no load), whose voltage impedance is 7%, and whose load losses are 15750watts. the short circuit at the secondary of the transformer using the impedance method is: a)27.01KA b)None of these c)25.8KA d)30KA
A network is composed of the utility having Ssc=250MVA, and an 2000KVA transformer, rated at 20KV/400V (no load), whose voltage impedance is 7%, and whose load losses are 15750watts. the short circuit at the secondary of the transformer using the impedance method is: a)27.01KA b)None of these c)25.8KA d)30KA
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 3.63P: A 23/230-kV step-up transformer feeds a three-phase transmission line, which in turn supplies a...
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A network is composed of the utility having Ssc=250MVA, and an 2000KVA transformer, rated at 20KV/400V (no load), whose voltage impedance is 7%, and whose load losses are 15750watts. the short circuit at the secondary of the transformer using the impedance method is:
a)27.01KA
b)None of these
c)25.8KA
d)30KA
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