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.
Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter3: Power Transformers
Section: Chapter Questions
Problem 3.16P: A single-phase, 50-kVA,2400/240-V,60-Hz distribution transformer has the following parameters:...
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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