Themes of presentation works (1)

Themes of presentation works (1)

1. 
   Speed ​​control of an induction motor using a thyristor converter
   
2. 
   Speed control of the AC drive by means of the frequency converter
   

3) Frequency control of the supply voltage by means of power electronic devices

4) Control of the rotation speed of DC motors by means of thyristor Converter in the armature circuit

5)Control of the rotation speed of DC motors by means of thyristor Converter in the field winding circuit

6) The principle of operation and design of the transformer

7) Transformer operation

8) Three-Phase transformer

9) Open-Circuit and Short-Circuit tests

10) Autotransformers

11) Alternating- Current machines

12) Induction motor action

13) Construction of an induction motor

14) Starting an induction motor

15) Induction motors with improved starting characteristics

16) Speed control of induction motors

17) The principle of operation of synchronous motor

18) The principle of operation of the synchronous generator

19) Direct-current machines

20) DC generator

21) DC motor

22) DC motor start

23) Mechanical characteristics of DC motor

24) Regulation of DC motors of parallel excitation

25) Regulation of DC motors

26)The principle of operation and design of the autotransfor- mer

27)The principle of operation of the direct-current machines

28)The principle of operation of the induction motors

29)The principle of operation of the alternating- current machines

Themes of presentation works (2)

1. Gaseous dielectrics

2. Oil electrically insulating liquids

3. Synthetic liquid dielectrics

4. Polyethylene as an insulating material

5. Fluorine organic polymers

6. Silicone resins

7. Electrical insulating varnishes and compounds

8. Fibrous materials

9. Getinax, textolite and fiberglass

10. Elastomers

11. Glasses

12. Ceramic dielectrics

13. Mica and mica materials

14. Humidity properties of dielectrics

15. Mechanical properties of dielectrics

16. Thermal properties of dielectrics

17. Chemical properties of dielectrics

18. Ferroelectrics

19. Piezoelectrics

20. Pyroelectrics

21. Electrets

22. Liquid crystals

23. Materials for lasers

24. Germanium

25. Silicon

26. Silicon carbide

27. Semiconductor compounds AIIIBV

28. Semiconductor compounds AIIBVI

29. Semiconductor compounds AIVBVI

30. Magnetically soft materials

31. Magneto-hard materials

32. Superconducting materials

33. Alloys of high resistance

34. Non-metallic conductors