A transformer has a ratio of 4:1. The high voltage side is connected to a 240 Vrms source. The low voltage side (secondary) is connected to an impedance ZL = 20 + j10 Ω. a. What is the value of the load impedance when referred to the primary? b. (in A rms) What is the current out of the source?

A transformer has a ratio of 4:1. The high voltage side is connected to a 240 Vrms source. The low voltage side (secondary) is connected to an impedance ZL = 20 + j10 Ω. a. What is the value of the load impedance when referred to the primary? b. (in A rms) What is the current out of the source?

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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Concept explainers

Single Phase Transformer

A single-phase transformer is a type of power transformer. It is an electrical device that accepts converts the single phase alternating power into single phase alternating power. In this power conversion the voltage is stepped up or down. If the voltage is stepped up, the current will be stepped down and if the voltage is stepped down, the current will be stepped up.

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A transformer has a ratio of 4:1. The high voltage side is connected to a 240 Vrms source. The low voltage side (secondary) is connected to an impedance ZL = 20 + j10 Ω.
a. What is the value of the load impedance when referred to the primary?
b. (in A rms) What is the current out of the source?

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