A short-circuit test is performed on a 500 kVA, 69 kV/ 13.8 kV, 50 Hz transformer. The test is performed on the primary winding and the following values are obtained: Vsc = 50 V, Isc = 5 A, Psc = 50 W. Calculate the equivalent series resistance referred to the secondary winding

A short-circuit test is performed on a 500 kVA, 69 kV/ 13.8 kV, 50 Hz transformer. The test is performed on the primary winding and the following values are obtained: Vsc = 50 V, Isc = 5 A, Psc = 50 W. Calculate the equivalent series resistance referred to the secondary winding

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Concept explainers

Single Phase Transformer

A single-phase transformer is a type of power transformer. It is an electrical device that accepts converts the single phase alternating power into single phase alternating power. In this power conversion the voltage is stepped up or down. If the voltage is stepped up, the current will be stepped down and if the voltage is stepped down, the current will be stepped up.

Question

A short-circuit test is performed on a 500 kVA, 69 kV /
13.8 kV, 50 Hz transformer. The test is performed on
the primary winding and the following values are
obtained: Vsc = 50 V, Isc = 5 A, Psc = 50 W.
Calculate the equivalent series resistance referred to
the secondary winding

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