3.8. Three identical 9-MVA, 7.2-kV/4.16-kV, single-phase transformers are con- nected in wye on the high-voltage side and delta on the low voltage side. The equivalent series impedance of each transformer referred to the high-voltage side is 0.12 + j0.82 N per phase. The transformer supplies a balanced three- phase load of 18 MVA, 0.8 power factor lagging at 4.16 kV. Determine the line-to-line voltage at the high-voltage terminals of the transformer.
3.8. Three identical 9-MVA, 7.2-kV/4.16-kV, single-phase transformers are con- nected in wye on the high-voltage side and delta on the low voltage side. The equivalent series impedance of each transformer referred to the high-voltage side is 0.12 + j0.82 N per phase. The transformer supplies a balanced three- phase load of 18 MVA, 0.8 power factor lagging at 4.16 kV. Determine the line-to-line voltage at the high-voltage terminals of the transformer.
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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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.
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Transcribed Image Text:3.8. Three identical 9-MVA, 7.2-kV/4.16-kV, single-phase transformers are con-
nected in wye on the high-voltage side and delta on the low voltage side. The
equivalent series impedance of each transformer referred to the high-voltage
side is 0.12 + j0.82 S per phase. The transformer supplies a balanced three-
phase load of 18 MVA, 0.8 power factor lagging at 4.16 kV. Determine the
line-to-line voltage at the high-voltage terminals of the transformer.
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Transcribed Image Text:3.8. Three identical 9-MVA, 7.2-kV/4.16-kV, single-phase transformers are con-
nected in wye on the high-voltage side and delta on the low voltage side. The
equivalent series impedance of each transformer referred to the high-voltage
side is 0.12 + j0.82 S per phase. The transformer supplies a balanced three-
phase load of 18 MVA, 0.8 power factor lagging at 4.16 kV. Determine the
line-to-line voltage at the high-voltage terminals of the transformer.
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