Q2. A 50kVA, 6360/240V, 60Hz, A/A-connected three-phase transformer has the following test data: Open circuit test: Voc = 240 V, Short circuit test: Vsc 157.74 V, Ioc = 7.862 A, Isc = 120.3 A, Poc = 2 kW Psc = 2.835 kW Calculate in primary terms (refer to HVS): I- The approximate equivalent circuit parameters referred to H.V.S. draw the circuit. II- The voltage regulation when supplying 34 of its full-load at 0.8 leading power factor. III- At what load the maximum expected efficiency occurs if the power factor is 0.8 leading.

Q2. A 50kVA, 6360/240V, 60Hz, A/A-connected three-phase transformer has the following test data: Open circuit test: Voc = 240 V, Short circuit test: Vsc 157.74 V, Ioc = 7.862 A, Isc = 120.3 A, Poc = 2 kW Psc = 2.835 kW Calculate in primary terms (refer to HVS): I- The approximate equivalent circuit parameters referred to H.V.S. draw the circuit. II- The voltage regulation when supplying 34 of its full-load at 0.8 leading power factor. III- At what load the maximum expected efficiency occurs if the power factor is 0.8 leading.

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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