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Basic Electrical Engineering: Transformers
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Basic Electrical Engineering: Transformers
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25 Questions

1. What happens if the number of secondary turns is reduced?
2. How many types of errors are present in the current transformers?
3. How many classifications are the magnetic alloys used in the current transformers classified into?
4. What is the formula of the angle between secondary induced voltage and secondary current?
5. How many classifications are present for the current transformers?
6. The ratio of active conductor section to total conductor section is called space factor.
7. What is the definition of current transformer?
8. What is the insulation material used in the current transformer?
9. What is the material used in the transformer when the transformer errors should be small?
10. What is the relation of the secondary winding leakage reactance and secondary circuit impedance?
11. What is the additional usage of the presspahn material used as insulation material?
12. What is the formula of the actual ratio?
13. What is the value of the rated secondary current?
14. What is the definition of the ideal current transformer?
15. What should be done in order to reduce the errors in the core?
16. How many types are the current transformers classified into?
17. What is the insulation material on the primary conductor?
18. What are the disadvantages of the low rated secondary current transformer?
19. What is the formula of the phase angle of the secondary load circuit?
20. What type of core is employed when the performance standard required is not so high?
21. How many factors are present in the behavior of transformer under short circuit conditions?
22. What material is made use of for the lamination in the current transformer?
23. How many commonly used shapes of current transformer are present?
24. The ring shaped cores are made use of in the reduction of the secondary winding leakage reactance and secondary impedance.
25. To reduce the peak voltage between layers, the secondary winding is being sectionalized.

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