B/ A 50 KVA, 2300/230 V, 60 11z transformer has a high voltage 0.6502 and a low-voltage winding resistance of 0.0065 2. Labora following results: Open circuit test: V = 230 V, 1-5.7A, P = 190 W Short circuit test: V-41.5 V, 1-21.7 A, P-No wattmeter was used. (2) Compute the value of primary voltage needed to give rated secc transformer is connected as a step-up one and is delivering 50 KVA

B/ A 50 KVA, 2300/230 V, 60 11z transformer has a high voltage 0.6502 and a low-voltage winding resistance of 0.0065 2. Labora following results: Open circuit test: V = 230 V, 1-5.7A, P = 190 W Short circuit test: V-41.5 V, 1-21.7 A, P-No wattmeter was used. (2) Compute the value of primary voltage needed to give rated secc transformer is connected as a step-up one and is delivering 50 KVA

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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Q2/A/ 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 11z transformer has a high voltage winding resistance of 0.650 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 wattmeter was used. 18 (2) Compute the value of primary voltage needed to give rated secondary voltage when the transformer is connected as a step-up one and is delivering 50 KVA at a power factor of 0.8 lagging. (b) Compute the efficiency under conditions of part (a).
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