Calculate the daily efficiency of a single-phase transformer with an output capacity of 350 kVA at full load. If the losses of core and copper at full load are equal to 4.2 kilowatts and 3.2 kilowatts, respectively. If the transformer operates during the day as follows i 6 hours at full load and at a factor of 0.85 lagging. Three hours at three quarters of the full pregnancy with a factor of 0.8 late (iii) Six hours at one quarter of the full pregnancy and with a factor of one. Four hours at one fifth of the full pregnancy and by a factor of one. Five hours when not pregnant.

Calculate the daily efficiency of a single-phase transformer with an output capacity of 350 kVA at full load. If the losses of core and copper at full load are equal to 4.2 kilowatts and 3.2 kilowatts, respectively. If the transformer operates during the day as follows i 6 hours at full load and at a factor of 0.85 lagging. Three hours at three quarters of the full pregnancy with a factor of 0.8 late (iii) Six hours at one quarter of the full pregnancy and with a factor of one. Four hours at one fifth of the full pregnancy and by a factor of one. Five hours when not pregnant.

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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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

Calculate the daily efficiency of a
single-phase transformer with an
output capacity of 350 kVA at full
load. If the losses of core and copper
at full load are equal to 4.2 kilowatts
and 3.2 kilowatts, respectively. If the
transformer operates during the day
as follows i 6 hours at full load and at
a factor of 0.85 lagging. Three hours
at three quarters of the full pregnancy
with a factor of 0.8 late (iii) Six hours
at one quarter of the full pregnancy
and with a factor of one. Four hours at
one fifth of the full pregnancy and by
a factor of one. Five hours when not
pregnant.

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Full calculation with any assumption needed. All sub questions please as it is all related.