(a) A 5 MVA 230/11.5-kV single-phase power transformer has a per-unit resistance of 1.5% and a per-unit reactance of 6% (data taken from the transformer's nameplate). The transformer approximate equivalent circuit is given in the figure below. The open-circuit test performed on the low-voltage side of the transformer yielded the following data: Voc = 120 kV loc = 12 A Poc = 40 kW Refer to the low-voltage side of the transformer and calculate: (1) The value of Req and Xeq. (ii) The value of Rc and Xm. (iii) The voltage regulation when secondary voltage Vs = 11 kV and the secondary current Is = 350 A. Rea

(a) A 5 MVA 230/11.5-kV single-phase power transformer has a per-unit resistance of 1.5% and a per-unit reactance of 6% (data taken from the transformer's nameplate). The transformer approximate equivalent circuit is given in the figure below. The open-circuit test performed on the low-voltage side of the transformer yielded the following data: Voc = 120 kV loc = 12 A Poc = 40 kW Refer to the low-voltage side of the transformer and calculate: (1) The value of Req and Xeq. (ii) The value of Rc and Xm. (iii) The voltage regulation when secondary voltage Vs = 11 kV and the secondary current Is = 350 A. Rea

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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