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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.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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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.
Transcribed Image Text: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.
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