Ultimate Electrical Transformers for Power Engineering

           Hi and welcome everyone to our course " Ultimate Electrical Transformers for Power Engineering"

In this course, you are going to learn everything about electrical power transformers starting from the operation, theory, and design of three phase transformers moving to realizing the different types of transformers and their applications in the electric network, ending with a complete study on transformer protection, testing, and commissioning.

Thus, this course is designed to take you from zero to hero concerning electric power transformer engineering field.

• The course is structured as follows:

Firstly, a complete overview on the transformer theory and operation is illustrated through the following topics:

1. Transformer theory of operation

2. Ideal vs. Real transformers

3. Transformer equivalent circuit (Exact and approximate)

4. Phasor diagram of ideal and real transformers

Then, the next topic will be about the assessment of transformer performance through the following topics:

1. Transformer losses

2. Hysteresis losses vs. Eddy current losses

3. Transformer efficiency

4. Transformer regulation

5. How to perform open and short circuit tests to obtain transformer parameters

Then, a complete study on three phase transformers is introduced since 99% of power transformers are actually three phase transformers. Thus, three phase transformers are explained in depth through the following topics:

1. Construction, types, and connections of three phase transformers

2. How to get the per phase model of three phase transformers ?

3. Per unit analysis in three phase transformers

4. How to get the per unit transformer parameters

5. Transformer vector group

6. How to obtain winding connections of any transformer vector group with examples ?

Then, you are going to learn about the manufacturing and construction of power transformers explaining all the transformer parts. The following topics will be covered:

1. Transformer core manufacturing

2. Core type vs. Shell type transformers

3. Transformer winding manufacturing

4. Helical, Crossover, Disc, and Sandwich windings

5. Transformer main and conservator tank

6. Importance of transformer oil

7. Breather unit, Buchholz relay, Surge arrester, and Rod gap in power transformers

8. Transformer terminals and bushings

9. Transformer cooling methods

Then, the next topic will be about the different factors that affect the transformer operation. These factors are discussed through the following points:

1. Temperature rise and thermal rating

2. Relation between temperature rise and transformer loading

3. Effect of harmonics on transformers

4. Harmonics mitigation and K-factor transformers

5. Inrush current in transformer

6. Over fluxing and its effect on transformers

7. Reasons for humming noise coming from transformer

8. Earthing of transformers

The next topic is about a complete study on different types of transformers and their applications in power systems. The following types of transformers are discussed in details:

1. Power transformers

2. Distribution transformers

3. Current Transformers (CT)

4. Voltage Transformers (VT or PT)

5. Auto Transformers

6. Earthing (grounding )transformer

7. Phase shifting transformer (PST)

8. Booster transformer

9. Three winding transformer (tertiary winding)

10. High voltage testing transformer (HVT)

Then, we are going to a complete study on transformer protection where we are going to know identify the different transformer faults and provide a suitable protection device to this type of fault. The following outlines are discussed in depth:

1. Types of transformer faults

2. Protection functions in transformer

3. Core-balance leakage protection

4. Combined Leakage and phase fault Protection

5. Differential protection of transformers

6. CT connections in transformer differential protection

7. How to calculate CT ratios for differential protection

8. Harmonic restraint relay

9. Over fluxing protection (Volt/Hertz relay)

10. Restricted earth fault protection

11. Oil and winding temperature trip relays

12. Pressure relief device (PRD)

Then, The next topic is about transformer testing, commissioning, and diagnostics where we are going to perform routine, type, and special test on power transformers to ensure the healthiness of the transformer before its energization on the site. The following tests are performed and explained:

1. Insulation resistance (IR test)

2. Tan Delta test (Dielectric loss test)

3. Partial discharge (PD test)

4. Hi-Pot test (Applied voltage test)

5. Induced voltage test

6. Impulse voltage test

7. Oil breakdown voltage (BDV) test

8. Dissolved gas analysis (DGA) Test

9. Transformer turns ratio (TTR) test

10. Winding resistance test

11. Magnetizing current test

12. Percentage impedance test

13. Vector group test

Finally, Complete MATLAB Simulations on electrical transformers are done such as:

1. MATLAB Simulation of 1-ph and 3-ph transformers

2. Practical transformer Vs. Ideal transformer in MATLAB/Simulink

3. Efficiency, Losses and Voltage regulation calculations in MATLAB/Simulink

4. No load and short circuit test of 1-ph and 3-ph transformers in MATLAB/Simulink

So, if you are Looking for a

              If your answer is YES, then you're definitely in the right place.