QZIA/ What are the conditions for satisfying parallel operation of single phase transformer?Deduce an expression for the load shared by the two transformers in parallel when thetransformers have equal voltage ratio? Prove your answer.B/ A 50 KVA, 2300/230 V, 60 Hz transformer has a high voltage winding resistance of0.652 and a low-voltage winding resistance of 0.0065 2. Laboratory tests showed thefollowing results:Open circuit test: V = 230 V, I =5.7A, P 190 WShort circuit test: V-41.5 V, I-21.7 A, P-No watmeter was used.(a) Compute the value of prinàry voltaga needed to give rated secondary voltage when thetransformer is connected as a step-up onc and is delivering 50 KVA at a power factor of 0.8lagging. (b) Compute the efficiency under conditions of part (a).18

Answered: Image /qna-images/answer/c05551b0-3c49-44d5-8e31-44c5779bec68.jpg

Q2/A/ What are the conditions for satisfving parallel operation of single phase transformer? Deduce an expression for the load shared by the two transformers in parallel when the transformers have equal voltage ratio? Prove your answer. B/ A 50 KVA 0300 030 hi

Q2/A/ What are the conditions for satisfving parallel operation of single phase transformer? Deduce an expression for the load shared by the two transformers in parallel when the transformers have equal voltage ratio? Prove your answer. B/ A 50 KVA 0300 030 hi

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

Three-Phase Transformers

Three-segment transformers are a type of transformer used to transform voltages of electrical systems into three ranges. Two type transformers are shell-type transformer and core type transformer. In brief, it could be described because of the exquisite kinds of configurations.

Transformer

Ever since electricity has been created, people have started using it in its entirety. We see many types of Transformers in the neighborhoods. Some are smaller in size and some are very large. They are used according to their requirements. Many of us have seen the electrical transformer but they do not know what work they are engaged in.

Question

QZIA/ What are the conditions for satisfying parallel operation of single phase transformer?
Deduce an expression for the load shared by the two transformers in parallel when the
transformers have equal voltage ratio? Prove your answer.
B/ A 50 KVA, 2300/230 V, 60 Hz transformer has a high voltage winding resistance of
0.652 and a low-voltage winding resistance of 0.0065 2. Laboratory tests showed the
following results:
Open circuit test: V = 230 V, I =5.7A, P 190 W
Short circuit test: V-41.5 V, I-21.7 A, P-No watmeter was used.
(a) Compute the value of prinàry voltaga needed to give rated secondary voltage when the
transformer is connected as a step-up onc and is delivering 50 KVA at a power factor of 0.8
lagging. (b) Compute the efficiency under conditions of part (a).
18

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