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Transformer Ratios of Single Phase Transformer Video Lecture | Electrical Machines for Electrical Engg. - Electrical Engineering (EE)

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FAQs on Transformer Ratios of Single Phase Transformer Video Lecture - Electrical Machines for Electrical Engg. - Electrical Engineering (EE)

1. What is the transformer ratio in a single-phase transformer?
Ans. The transformer ratio in a single-phase transformer is the ratio of the number of turns in the primary winding to the number of turns in the secondary winding. It determines the voltage transformation from the primary side to the secondary side.
2. How is the transformer ratio calculated in a single-phase transformer?
Ans. The transformer ratio in a single-phase transformer can be calculated by dividing the number of turns in the primary winding by the number of turns in the secondary winding. For example, if the primary winding has 100 turns and the secondary winding has 200 turns, the transformer ratio would be 1:2.
3. What is the significance of the transformer ratio in a single-phase transformer?
Ans. The transformer ratio plays a crucial role in determining the voltage transformation in a single-phase transformer. It determines the relationship between the primary voltage and the secondary voltage. A higher ratio will result in a higher voltage transformation, while a lower ratio will result in a lower voltage transformation.
4. Can the transformer ratio be changed in a single-phase transformer?
Ans. In a single-phase transformer, the transformer ratio is fixed and cannot be changed without physically altering the number of turns in the windings. However, it is possible to achieve different voltage transformations by using transformers with different transformer ratios.
5. How does the transformer ratio affect the power output in a single-phase transformer?
Ans. The transformer ratio affects the power output in a single-phase transformer by determining the voltage and current levels in the primary and secondary windings. A higher transformer ratio will result in a lower current on the secondary side and a higher voltage, while a lower transformer ratio will result in a higher current on the secondary side and a lower voltage. This relationship is governed by the principle of power conservation.
35 videos|85 docs|42 tests
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