By Anthony J. Pansini
Ebook by means of Pansini, Anthony J.
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Extra info for Electrical transformers and power equipment
What factors affect its magnitude? 5. How is a voltage generated in a coil of the transformer? What is the relationship between the input or primary voltage and the output or secondary voltage? 6. What is meant by the ratio of transformation or turns ratio? 7. Describe the action of a transformer when a load is connected to the secondary. 8. What are the energy losses in a transformer? What form do they take? 9. What is meant by the regulation of a transformer? What factors affect it? 10. How are transformers' ratings expressed?
What is meant by the ratio of transformation or turns ratio? 7. Describe the action of a transformer when a load is connected to the secondary. 8. What are the energy losses in a transformer? What form do they take? 9. What is meant by the regulation of a transformer? What factors affect it? 10. How are transformers' ratings expressed? What limits their capacity? Page 22 2 Transformer Construction.. Principal Parts The ordinary power supply transformer basically consists of two windings, insulated from each other, wound on a common core of magnetically suitable material such as iron or steel.
1-2 shows that a total force of 10 lbs. applied to one side of the jack can lift a weight of 100 lbs. on the other. The first piston, however, must be pushed down 10 in. in order that the weight of 100 lbs. be lifted a distance of 1 in. Thus a force of 10 lbs. has been transformed into one of 100 lbs. In a transformer, the forces exerted correspond to the voltage while the Page 5 Figure 1-2 Hydraulic (oil or water jack) analogy of a transformer. distances traveled correspond to the amperes. The total power on both sides, however, is the same.