A 500kVA, 3 phase transformer, 60Hz, Delta-Wye, has the voltage ratio 34/12kV. Resistance per phase on the primary side is 350 and 0.8769 on the secondary side. The iron core loss is 3050W. a) Calculate the copper losses on the primary side b) Calculate the efficiency of the transformer at 3/4 of the load if the power factor is 0.8

A 500kVA, 3 phase transformer, 60Hz, Delta-Wye, has the voltage ratio 34/12kV. Resistance per phase on the primary side is 350 and 0.8769 on the secondary side. The iron core loss is 3050W. a) Calculate the copper losses on the primary side b) Calculate the efficiency of the transformer at 3/4 of the load if the power factor is 0.8

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 3.5MCQ: For an ideal 2-winding transformer, an impedance Z2 connected across winding 2 (secondary) is...

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