Answered: L, R1 a*R2 a²L2 L, +a²L½ _Rq+a°R2…

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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When operating with an open-circuit load and with rated primary voltage, a certain 60Hz 20-kVA 8000/240-V-rms transformer has a primary current of 0.315 A rms and absorbs 360 W. Which of the elements of the equivalent circuit of Figure 14.29(b) on page 729 can be determined from this data? Find the numerical values of these elements.

L,
R1
a*R2
a²L2
L, +a²L½ _Rq+a°R2
a=NIN2
a=N,IN2
Lm
R.
Lm:
R_
Ideal
(a) All elements referred to the primary side
(b) Approximate equivalent circuit that is sometimes more
convenient to use than that of part (a)
Figure 14.29

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why are you using the high voltage to find the open circuit angle in step 1? isnt the low voltage supposed to be applied in the open-circuit test?

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