A Transformer with 10:1 ratio and rated at 50-kVA, 2400/240-V, 50-Hz is used to step down the voltage of a distribution system. The low-tension voltage is to be kept constant, if the transformer has: R = 2.2 0, R2 = 0.014 Q, X, = 4.1 0, X2 = 0.03 0, then, a. What load impedance connected to low-tension side will be loading the transformer fully. b. Calculate the equivalent resistance as referred to primary. c. Calculate the equivalent reactance as referred to primary. d. Calculate the equivalent impedance as referred to primary. e. Calculate the total Cu loss. UndoDoneA Transformer with 10:1 ratio and rated at 50-kVA, 2400/240-V, 50-Hz is used to step down the voltageof a distribution system. The low-tension voltage is to be kept constant, if the transformer has:R = 2.2 0, R2 = 0.014 Q, X, = 4.1 0, X2 = 0.03 0, then,a. What load impedance connected to low-tension side will be loading the transformer fully.b. Calculate the equivalent resistance as referred to primary.c. Calculate the equivalent reactance as referred to primary.d. Calculate the equivalent impedance as referred to primary.e. Calculate the total Cu loss.

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Answered: A Transformer with 10:1 ratio and rated…

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 3.4P: A single-phase 100-kVA,2400/240-volt,60-Hz distribution transformer is used as a step-down...

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A Transformer with 10:1 ratio and rated at 50-kVA, 2400/240-V, 50-Hz is used to step down the voltage of a distribution system. The low-tension voltage is to be kept constant, if the transformer has: R = 2.2 0, R2 = 0.014 Q, X, = 4.1 0, X2 = 0.03 0, then, a. What load impedance connected to low-tension side will be loading the transformer fully. b. Calculate the equivalent resistance as referred to primary. c. Calculate the equivalent reactance as referred to primary. d. Calculate the equivalent impedance as referred to primary. e. Calculate the total Cu loss.

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A Transformer with 10:1 ratio and rated at 50-kVA, 2400/240-V, 50-Hz is used to step down the voltage
of a distribution system. The low-tension voltage is to be kept constant, if the transformer has:
R = 2.2 0, R2 = 0.014 Q, X, = 4.1 0, X2 = 0.03 0, then,
a. What load impedance connected to low-tension side will be loading the transformer fully.
b. Calculate the equivalent resistance as referred to primary.
c. Calculate the equivalent reactance as referred to primary.
d. Calculate the equivalent impedance as referred to primary.
e. Calculate the total Cu loss.

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