Answered: A transformer is rated 7200:120 V, 25…

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A transformer is rated 7200:120 V, 25 kVA. What is the base impedance on the low- voltage (120 V) side, in ohms?

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter11: Thermostats, Pressure Switches, And Other Electric Control Devices

Section: Chapter Questions

Problem 27RQ

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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.

Question

A transformer is rated 7200:120 V, 25 kVA. What is the base impedance on the low-
voltage (120 V) side, in ohms?

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