A 250/500 volts, single-phase transformer gave the following test results :Short-circuit test (LV short-circuited): 20 V, 12 A, 100 WattsOpen-circuit test (Low voltage side): 250 V, 1 A, 80 WattsDetermine the efficiency of the transformer when the output is 12 Amp, 500 Volts at 0.85 power factor lagging.

Given- Single phase transformer- Output voltage V=500 V, Output current I=12 A, power factor=0.85…

A 250/500 volts, single-phase transformer gave the following test results : test (LV short-circuited): 20 V, 12 A, 100 Watts Short-circuit Open-circuit test (Low voltage side): 250 V, 1 A, 80 Watts Determine the efficiency of the transformer when the output is 12 Amp, 500 Volts at 0.85 power factor lagging.

A 250/500 volts, single-phase transformer gave the following test results : test (LV short-circuited): 20 V, 12 A, 100 Watts Short-circuit Open-circuit test (Low voltage side): 250 V, 1 A, 80 Watts Determine the efficiency of the transformer when the output is 12 Amp, 500 Volts at 0.85 power factor lagging.

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 3.9P

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