4. The iron loss in a transformer core at normal flux density was measured at frequencies of 30 and 50Hz, the results being 30 W and 54 W respectively. Calculate (a) the hysteresis loss and (b) the eddycurrent loss at 50 Hz.[44 W, 10 W]5. An iron core was magnetised by passing an alternating current through a winding on it. The powerrequired for a certain value of maximum flux density was measured at a number of different frequencies.Neglecting the effect of resistance of the winding, the power required per kg of iron was 0.8 W at 25Hz and 2.04 W at 60 Hz. Estimate the power needed per kg when the iron is subject to the samemaximum flux density but the frequency is 100 Hz.[3.63 W]

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4. The iron loss in a transformer core at normal flux density was measured at frequencies of 30 and 50 Hz, the results being 30 W and 54 W respectively. Calculate (a) the hysteresis loss and (b) the eddy current loss at 50 Hz. [44 W, 10 W]

4. The iron loss in a transformer core at normal flux density was measured at frequencies of 30 and 50 Hz, the results being 30 W and 54 W respectively. Calculate (a) the hysteresis loss and (b) the eddy current loss at 50 Hz. [44 W, 10 W]

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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