5 kVA, 220/110 volts single-phase transformer was tested and has the following results. At short-circuit test with rated input current the power measured is 150 watts. At open circuit test, the power measured is 52 watts at rated input voltage. Determine: 1. the efficiency at 0.8 lagging power factor for the following loads: a. 1/4 of the rated b. rated c. 1.2 of the rated 2. the maximum efficiency
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 5 kVA, 220/110 volts single-phase transformer was tested and has the following results. At short-circuit test with rated input current the power measured is 150 watts. At open circuit test, the power measured is 52 watts at rated input voltage.
Determine:
1. the efficiency at 0.8 lagging power factor for the following loads:
a. 1/4 of the rated
b. rated
c. 1.2 of the rated
2. the maximum efficiency
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
