Answered: A 480/2400-V rms step-up ideal…

A 480/2400-V rms step-up ideal transformer delivers 46 kW to a load with a load/secondary current of 25 A rms. Calculate the magnitude (in A rms) of the primary current. Answer:

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

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.13MCQ

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Concept explainers

Three-Phase Transformers

Three-segment transformers are a type of transformer used to transform voltages of electrical systems into three ranges. Two type transformers are shell-type transformer and core type transformer. In brief, it could be described because of the exquisite kinds of configurations.

Transformer

Ever since electricity has been created, people have started using it in its entirety. We see many types of Transformers in the neighborhoods. Some are smaller in size and some are very large. They are used according to their requirements. Many of us have seen the electrical transformer but they do not know what work they are engaged in.

Question

Please answer all of these

A 480/2400-V rms step-up ideal transformer delivers 46 kW to a load with a
load/secondary current of 25 A rms. Calculate the magnitude (in A rms) of the primary
current.
Answer:

For the circuit of ideal transformers shown, find the phasor curents (expressed in rectangular
form, in amperes) I1. I, and Is.
-j6 2 72
12
1:2
1:3
12/0° V
I3
j18

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