2. A 4600 to 230 Volts, 60 Hz step down transformer has a core dimension of 3.00 by 4.40 inches. A maximum flux density of 60,000 lines/in^2 is to be used. Assuming a 9% loss of area due to stacking factor of laminations.

2. A 4600 to 230 Volts, 60 Hz step down transformer has a core dimension of 3.00 by 4.40 inches. A maximum flux density of 60,000 lines/in^2 is to be used. Assuming a 9% loss of area due to stacking factor of laminations.

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

The turns per volt is:
O 52.1 turns /volt
5.21 turns /volt
5210 turn per volt
O 0.521 turn /volt

2. A 4600 to 230 Volts, 60 Hz step down transformer has a core dimension of 3.00
by 4.40 inches. A maximum flux density of 60,000 lines/in^2 is to be used.
Assuming a 9% loss of area due to stacking factor of laminations.

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2. A 4600 to 230 Volts, 60 Hz step down transformer has a core dimension of 3.00 by 4.40 inches. A maximum flux density of 60,000 lines/in^2 is to be used. Assuming a 9% loss of area due to stacking factor of laminations. The number of turns required in the primary is: 240 turns 2397 turns 239.7 turns 23.97 turns
3) Transformer cores are laminated in order to A) Simplify its construction. B) Minimize eddy current loss. C) Reduce cost. D) Reduce hysteresis loss.
When rated voltage at rated frequency is applied to a single phase transformer, the hysteresis loss is 420W and eddy current loss is 150W, respectively. Solve for the new core loss if the voltage is increased by 10% and frequency is decreased by 5%.