Compute the parameters of the approximate equivalent Circuit referred to the low Voltag side
Compute the parameters of the approximate equivalent Circuit referred to the low Voltag side
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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Please solve these questions below
Transcribed Image Text:Tutorial
27/5/2021
EX1: A
20KVA, 2500/250V, S0HZ,1-Ø transformer
has the following test results:
O.C. Test ( L.V. Side):
S.C. Test CH.V.Side): 104U, 8A , 320W
Compute the parameters of the approximate equivalent
circuít referred to the low Voltage side.
2 50V, 1.4A, 105W
Ex2: Two trausformers A and B are Connected
in parallel
Their impedances in secondary terms are
ZA = (0.15+ jo.5 )r and ZB = (0.1+jo.6) sL
Their no-load terminal voltages are
EA = 207 L0v and
Power outpt cnd power factor of each
transformer
aload
of (2+jl.5 )R
to
EB = 205 Lo v. Find
the
Ex3: The following resuHs
a 30KVA, 300o/ 11oV transformer
were obtained
on
O.C. test: 3a00 V
0.5 A
350W
S.C. test
150V
10 A
500W
Calculate the efficiency of the transformer
at
(a) full
load
Ch) half-load
unity P.f
Also Caleulate the kVA outout at which
o.8 P.f
the efficiency is maximum
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