1- Consider a 50 kVA, 7200V-208V, 3-phase, 50 Hz, wye-delta connected transformer. The open and short-circuit tests are as follows: Poe = 500 W, Ioe =4.0 A, Voc = 208 V performed on the secondary Pse = 600 W, Igc = 4.01 A, Vsc = 370 V performed on the primary Find: a) The parameters of the approximate equivalent circuit b) The voltage regulation at full load, 0.8 power-factor lagging. c) Draw a phasor diagram of this transformer at 0.8 power factor lagging.

1- Consider a 50 kVA, 7200V-208V, 3-phase, 50 Hz, wye-delta connected transformer. The open and short-circuit tests are as follows: Poe = 500 W, Ioe =4.0 A, Voc = 208 V performed on the secondary Pse = 600 W, Igc = 4.01 A, Vsc = 370 V performed on the primary Find: a) The parameters of the approximate equivalent circuit b) The voltage regulation at full load, 0.8 power-factor lagging. c) Draw a phasor diagram of this transformer at 0.8 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 3.51P: The ratings of a three-phase three-winding transformer are Primary(1): Y connected 66kV,15MVA...

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