EE6503 Power Electronics Question Bank
EE6503 Power Electronics Question Bank Regulation 2013 Anna University free download. EE6503 Question Bank Power Electronics pdf free download.
Sample EE6503 Power Electronics Question Bank:
Part A (2 Marks)
1. What is meant by phase controlled rectifier?
2. Mention some of the applications of controlled rectifiers.
3. Classify controlled rectifiers.
4. Define delay or firing angle.
5. Define extinction angle. (EE6503 Power Electronics Question Bank)
6. Differentiate between line and forced commutation.
7. What is commutation angle or overlap angle?
8. What is the function of freewheeling diode in controlled rectifiers?
9. List the advantages of freewheeling diodes.
10. What is the inversion mode of rectifiers? (EE6503 Power Electronics Question Bank)
11. Why the power factor of semi converter is greater than full converter?
12. What is meant by input power factor in controlled rectifier?
13. What are the advantages of six pulse converter?
14. Distinguish between two and four quadrant converters.
15. What are ac voltage controllers and give few applications? (EE6503 Power Electronics Question Bank)
16. List the merits and demerits of ac voltage controllers.
17. List the strategies available for control of ac voltage controllers.
18. Distinguish between ON-OFF and integral cycle control. (EE6503 Power Electronics Question Bank)
19. What are the two types of ac voltage controllers? Which one of these is preferred, why?
20. What is meant by full wave or bidirectional ac voltage controller?
PART- B 16 marks (EE6503 Power Electronics Question Bank)
1. Explain the principle of operation and derive the expressions for average output voltage and RMS output voltage of the following,
a. Single-phase half controlled rectifier feeding R load
b. Single-phase full controlled rectifier feeding RL load
c. Single-phase two quadrant and two pulse converter operating on rectification and Inversion modes.
2. Explain the operation of three-phase half and full converter rectifier feeding RL load. With the aid of neat waveforms and also derive the expression for average output voltage.
3. Explain the effect of source impedance on the performance of converters.
4. Explain the operation of Single-phase ac voltage controller having only thyristors feeding resistive load by on-off and phase control. Derive the expression for rms value of output voltage in both cases. (EE6503 Power Electronics Question Bank)
| Subject Name | Power Electronics |
| Subject Code | EE6503 |
| Regulation | 2013 |
| File |
EE6503 Power Electronics Question Bank click here to download
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