2. The following data were obtained on a 2.5 MVA, 50-Hz, 19.1-kV:3.81-kV single-phase transformer tested at 50 Hz: Voltage (V) Current (A) Power (kW) LV winding with HV terminals open-circuited: 3810 9.86 8.14 HV winding with LV terminals short-circuited: 920 141 10.3 a. Calculate the cantilever equivalent-circuit parameters as referred to the transformer high-voltage winding. b. Calculate the cantilever equivalent-circuit parameters as referred to the transformer low-voltage winding. c. With the transformer carrying rated load and rated voltage at its low-voltage terminal, calculate the power dissipated in the transformer.
2. The following data were obtained on a 2.5 MVA, 50-Hz, 19.1-kV:3.81-kV single-phase transformer tested at 50 Hz: Voltage (V) Current (A) Power (kW) LV winding with HV terminals open-circuited: 3810 9.86 8.14 HV winding with LV terminals short-circuited: 920 141 10.3 a. Calculate the cantilever equivalent-circuit parameters as referred to the transformer high-voltage winding. b. Calculate the cantilever equivalent-circuit parameters as referred to the transformer low-voltage winding. c. With the transformer carrying rated load and rated voltage at its low-voltage terminal, calculate the power dissipated in 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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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
The following data were obtained on a 2.5 MVA, 50-Hz, 19.1-kV:3.81-kV single-phase transformer
tested at 50 Hz:
Voltage (V) Current (A) Power (kW)
LV winding with HV terminals open-circuited: 3810 9.86 8.14
HV winding with LV terminals short-circuited: 920 141 10.3
Transcribed Image Text:2. The following data were obtained on a 2.5 MVA, 50-Hz, 19.1-kV:3.81-kV single-phase transformer
tested at 50 Hz:
Voltage (V) Current (A) Power (kW)
LV winding with HV terminals open-circuited:
3810
9.86
8.14
HV winding with LV terminals short-circuited:
920
141
10.3
a. Calculate the cantilever equivalent-circuit parameters as referred to the transformer high-voltage
winding.
b. Calculate the cantilever equivalent-circuit parameters as referred to the transformer low-voltage
winding.
c. With the transformer carrying rated load and rated voltage at its low-voltage terminal, calculate the
power dissipated in the transformer.
d. Repeat part a and b in per-unit. Compare and comment on your result.
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