Answered: In a certain transformer, the…

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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Question

In a certain transformer, the hysteresis loss was found to be 160 watts when the maximum flux density was 1.1 Wb/m² and the frequency 60 Hz. What will be the loss when the maximum flux density is reduced to 0.9 Wb/m and frequency to 50 Hz?

Expert Solution

Step 1

We have been given an transformer we have been given 2 cases for this,

FIrst case:-

Hysteresis loss (p₁) = 160 W

Maximum flux density (B_max1) = 1.1 Wb/m²

frequency (f₁ ) = 60 Hz

Second case:-

Maximum flux density (B_max2) = 0.9 Wb/m²

frequency (f₂ ) = 50 Hz

We have been asked that what will be the loss in second case.

We know that,

Hysteresis loss (P) $α$ f (B_max)^1.6

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