4.a. In the autotransformer shown here, 220 V is applied across the 100-turn primary. What will the secondary voltage be if the secondary is connected across 75 of the turns? A. 165 V B. 75 V C. 275 V D. 100 V
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.
4.a. In the autotransformer shown here, 220 V is applied across the 100-turn primary. What will the
secondary voltage be if the secondary is connected across 75 of the turns?
A. 165 V
B. 75 V
C. 275 V
D. 100 V
4.b. If the unloaded secondary voltage of a transformer is 210 V and the full-load secondary voltage is 200
V, the percent regulation is
A. 95%
B. 5%
C. 90%
D. 10%
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