A three phase transformer, 6600/381 V, has D/Y connected and takes10A. The Turn ratio /phase is 30. Theline current on the secondary side is90 A173.22 A155.88A300AA single-phase transformer has itsmaximum efficiency at 70% of fullload. and at 50% of full load copperloss will be *equal to core lossless than core ..

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Answered: A three phase transformer, 6600 / 381…

A three phase transformer, 6600 / 381 V, has D/Y connected and takes 10A. The Turn ratio /phase is 30. The line current on the secondary side is * 90 A O 173.22 A O 155.88A O 300A

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 three phase transformer, 6600/
381 V, has D/Y connected and takes
10A. The Turn ratio /phase is 30. The
line current on the secondary side is
90 A
173.22 A
155.88A
300A
A single-phase transformer has its
maximum efficiency at 70% of full
load. and at 50% of full load copper
loss will be *
equal to core loss
less than core ..

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