4.45. Three 60-VA, 120/208-V, single-phase transformers are to be used to form a three-phase transformer. For each of the four connections, determine (a) the phase voltages, (b) the phase currents, (c) the a-ratio, and (d) the power rating.

4.45. Three 60-VA, 120/208-V, single-phase transformers are to be used to form a three-phase transformer. For each of the four connections, determine (a) the phase voltages, (b) the phase currents, (c) the a-ratio, and (d) the power rating.

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 3.11MCQ: For a short-circuit test on a 2-winding transformer, with one winding shorted, can you apply the...

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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

4.45. Three 60-VA, 120/208-V, single-phase transformers are to be used to form
a three-phase transformer. For each of the four connections, determine
(a) the phase voltages, (b) the phase currents, (c) the a-ratio, and (d) the
power rating.

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