A single-phase, 25kVA, 220/440V transformer has the following test results: - Open circuit test (HV side open): 220V, 9.5A, 650W Short circuit test (LV side shorted): 37.5V, 55A, 950W a) Determine the rated voltage and current for the high-voltage and low voltage sides. b) Draw the equivalent circuit referred to the HV side. c) Determine the voltage regulation at 75% full load, 0.6 PF leading

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 3.16P: A single-phase, 50-kVA,2400/240-V,60-Hz distribution transformer has the following parameters:...
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A single-phase, 25kVA, 220/440V transformer has the following test results:
-
Open circuit test (HV side open): 220V, 9.5A, 650W
Short circuit test (LV side shorted): 37.5V, 55A, 950W
a) Determine the rated voltage and current for the high-voltage and low voltage sides.
b) Draw the equivalent circuit referred to the HV side.
c) Determine the voltage regulation at 75% full load, 0.6 PF leading
Transcribed Image Text:A single-phase, 25kVA, 220/440V transformer has the following test results: - Open circuit test (HV side open): 220V, 9.5A, 650W Short circuit test (LV side shorted): 37.5V, 55A, 950W a) Determine the rated voltage and current for the high-voltage and low voltage sides. b) Draw the equivalent circuit referred to the HV side. c) Determine the voltage regulation at 75% full load, 0.6 PF leading
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