The following test data were taken on a 15 KVA, 2200/440 V, 60 Hz transformer: Short-circuit test: Open-circuit test: P-620 W P-320 W I=34 A I-IA V-25 V V=440 V a) Calculate the voltage regulation of this transformer when it supplies full load at 0.9 pf lagging. Use the approximate circuit. b) Find the efficiency at the load condition of part (a).

The following test data were taken on a 15 KVA, 2200/440 V, 60 Hz transformer: Short-circuit test: Open-circuit test: P-620 W P-320 W I=34 A I-IA V-25 V V=440 V a) Calculate the voltage regulation of this transformer when it supplies full load at 0.9 pf lagging. Use the approximate circuit. b) Find the efficiency at the load condition of part (a).

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 3.3P: Consider an ideal transformer with N1=3000andN2=1000 turns. Let winding 1 be connected to a source...

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