A 25 kVA, single phase 2200/220 V transformer has a primary winding resistance of 1 ohms, secondary winding resistance of 0.01 ohms, primary leakage reactance of 1.5 ohms and secondary leakage reactance 0.015 ohms. The iron loss of the transformer is 206 watt. Calculate the efficiency of the transformer and the voltage regulations at the following condition. A. half load B. Full load c. 50% overload [Ans: 97.88%, 0.516%; 98.17%,1.033%; 97.94%,1.549%]
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.
. A 25 kVA, single phase 2200/220 V transformer has a primary winding resistance of 1 ohms,
secondary winding resistance of 0.01 ohms, primary leakage reactance of 1.5 ohms and
secondary leakage reactance 0.015 ohms. The iron loss of the transformer is 206 watt.
Calculate the efficiency of the transformer and the voltage regulations at the following
condition. A. half load B. Full load c. 50% overload
[Ans: 97.88%, 0.516%; 98.17%,1.033%; 97.94%,1.549%]
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