INSIDE MCB(MINIATURE CIRCUIT BREAKER)

  BREAKER: A breaker is a device designed to isolate a circuit during an overcurrent . a breaker is resettable protective device that protects against two types of overcurrent situations ; overload and short circuit.

so a MCB must be able protect equipment form short circuit current and overload.

inside MCB there are two main things.

1) bimetalic strip :during over load this bimetalic strip heats up and bends this will break the circuit.

 2) solenoid (electromagnet): during short circuit high amount of current flows in the solenoid which moves a plunger(rod) and breaks the circuit.

apart from this MCB can be manually switched off.

you can clearly understand this with the help of the below figure and video.

single pole mcb inside parts.

                      source :youtube.

seminar topics for electrical & electronics engineering

Apart from including the exhaustive list of renewable energy based seminars I have prepared this list based on industrial application which in future could bring an extra edge to students while working in some industries. I hope it would quench your search and could calm down your nerves for a while .Go through the list individually and chose the topic of your choice. Do a detailed analysis and discuss with your faculty. Prepare meticulously and buckle up for your existence into the frantic race of the world .

1. Transformer protection

2. Reactive power compensation

3. Variable frequency drives

4. Switchgear protection

5. Instrumentation transformer

6. OLTC online tap changer

5. Transformer testing

8. Universal motor

9. Power electronics switches

10. Synchronization of DG

11. UPS uninterrupted power supply 

12. Surge suppressor

14. Auto transformer

15. Automatic mains failure

16. IBMS integrated building management system

17. Insulators/conductors in transmission system

18. Protection scheme and interlock

19. Incipient fault in transformer

20. Transformer oil

21. Operation and maintenance of battery

22. Internal wiring

23. Illumination and luminaries

24. Electric cables

25. Grid voltage regulation

26. Power quality disturbance

27. Electrical hazards

28. SCADA automation system

29. Voltage and power in HVDC system

30. Speed control of ac motors

31. Brushless Alternators

32. Buck Boost Transformer

33. Circuit Breaker Switching & Arc Modeling

34. Motor stators

35. Nano technology

36. Transient cause and control

37. V/F method of speed control

38. Radial feeder protection

39. Power factor control and improvement

40. Microprocessor based relays

41. HVDC converters

42. Load shedding and sharing

43. Electrical and electromagnetic Interference

44. Alternator excitation

45. Traction drive

46. PID controller

47. Surge arresters

48. Harmonics in electrical system

49. Solar thermal power generation

50. MPPT maximum power point tracking.

wish you all the best.

vikash jha

9776843779