2- For each type of connection, determine the current ratios: aphi=ph 11ph ali- and 3- State the other possible connections of three-phase transformer. When these connection used? Why? 4- Discus your results.
2- For each type of connection, determine the current ratios: aphi=ph 11ph ali- and 3- State the other possible connections of three-phase transformer. When these connection used? Why? 4- Discus your results.
Chapter25: Television, Telephone, And Low-voltage Signal Systems
Section25.2: Telephone System
Problem 2R: At what height are the telephone outlets in this residence mounted? Give measurement to center....
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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.
Question
Transcribed Image Text:Via
(a)
Primaray:Vph= 220
secndary: Vph=74
VI=374 i=0.4
i=0.4
VI=125
at
Vla
all VS
(b)
Vph= 220 i=1.1
Vph=128 i=0.8
VI=
220
VI=128
V5al
VI V5 a
Vph=220
Vph=380
VI= 220
VI=380
Transcribed Image Text:allV5
Vla
V5 Vla
(d)
fig.(1)
Vph= 220 i=0.8
Vph=127 i=0.64
VI= 220
VI=220
2- For each type of connection, determine the current ratios:
aphi=
12ph
I1ph
and
121
ali=!
3- State the other possible connections of three-phase transformer. When these connection
used? Why?
4- Discus your results.
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