Installation of high voltage distribution and transmission equipment has increased significantly over the years due
to ongoing global demand for power. As a result, the need to ensure the reliability of operation of power systems is paramount. Power transformers are among the most important and most expensive components of power systems, their failure can impose extraordinarily high costs on plants, factories and utilities of all descriptions.
This course provides knowledge on both the theory and operation of Power Transformers. The course will develop and enhance an understanding of what is involved in the maintenance of these essential components of the power systems, through the tips and tricks learnt and developed by some of the World's pre- eminent electrical engineers.
Course Objectives
Gaining a thorough understanding of the operating characteristics of transformers
Being familiar with the different tests required for the various types of transformers
Learning the maintenance and troubleshooting activities
Being familiar with the various methods used to repair and refurbish transformers
Being able to maximize the efficiency, reliability, and longevity of transformers
Understanding the calculations and sizing techniques used for transformers
Learn how to select transformers to best fit with their purpose
Who Should Attend?
Technicians
Maintenance personnel
Electricians
Electrical supervisors
Project engineers
Engineers of all disciplines
Other technical individuals
Day-1
1. Alternating current system
2. Magnitude of voltage
3. Inductive circuit
4. Electricity magnetism
5. Magnetic material
6. Electricity and magnetism terms
7. Transformer principle
Day-2
8. Permeability and magnetizing characteristics
9. Hysteresis loop
10. Transformer inrush currents
11. Phasor diagram of transformer
12. Three phase vector
13. Transformer rating
14. Transformer impedance
Day-3
15. Three phase transformer
16. Power transformers
17. Distribution transformers
18. Phase-shifting transformers
19. Instrument transformers
20. Step-voltage regulators
21. Air cooled oil- immersed
22. Temperature limits
Day-4
23. Transformer operation and maintenance
24. Transformers in services
25. Transformer inspection
26. Tap changer maintenance
27. Parallel operation
28. DC winding resistance test
29. Winding insulation test
Day-5
30. Polarity test
31. No load test
32. Short circuit test
33. Impedance test
34. Moisture in transformer
35. Measurement of moisture content
36. Treatment of moisture
37. Oil Dielectric testing
