A 100-kVA, 2500/125-V, 50-Hz, step-downtransformer has the following parameters: R1=1.5Ω, X1= 2.8Ω, R2 = 15mΩ, X2 =20mΩ, Rc1 =3kΩ, Xm1 = 5kΩ The transformer delivers 85% of the rated load ata terminal voltage of 115 V and a power factor of0.866 lagging. Determine (a) the efficiency, and(b) the voltage regulation. Draw the phasordiagram of the transformer. Use the approximate equivalent circuit referredto the secondary side.
A 100-kVA, 2500/125-V, 50-Hz, step-downtransformer has the following parameters: R1=1.5Ω, X1= 2.8Ω, R2 = 15mΩ, X2 =20mΩ, Rc1 =3kΩ, Xm1 = 5kΩ The transformer delivers 85% of the rated load ata terminal voltage of 115 V and a power factor of0.866 lagging. Determine (a) the efficiency, and(b) the voltage regulation. Draw the phasordiagram of the transformer. Use the approximate equivalent circuit referredto the secondary side.
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...
Related questions
Question
A 100-kVA, 2500/125-V, 50-Hz, step-down
transformer has the following parameters: R1=
1.5Ω, X1= 2.8Ω, R2 = 15mΩ, X2 =20mΩ, Rc1 =
3kΩ, Xm1 = 5kΩ
The transformer delivers 85% of the rated load at
a terminal voltage of 115 V and a power factor of
0.866 lagging. Determine (a) the efficiency, and
(b) the voltage regulation. Draw the phasor
diagram of the transformer.
Use the approximate equivalent circuit referred
to the secondary side.
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