Three-Phase Transformer Course
Gain expertise in three-phase transformers rated 33 kV to 132 kV. Master design principles, vector groups, sizing calculations, protection schemes, one-line diagrams, relay coordination, and field testing to confidently specify, commission, and operate safe, reliable substation transformers.

4 to 360 hours flexible workload
valid certificate in your country
What will I learn?
Acquire hands-on skills to select, size, connect, protect, and commission three-phase transformers from 33 kV to 132 kV. Cover power system basics, vector groups, tap changers, fault analysis, one-line diagrams, relay coordination, and field testing for designing and operating efficient, safe transformer systems.
Elevify advantages
Develop skills
- Size three-phase transformers using MVA, kV, and current formulas.
- Interpret substation one-line diagrams, symbols, power flow, and switching paths.
- Select vector groups like delta or wye for grounding, faults, and harmonics.
- Configure transformer protection with CT/PT ratios, relay settings, and fault limits.
- Conduct field tests including phasing, polarity, oil, and insulation checks.
Suggested summary
Before starting, you can change the chapters and the workload. Choose which chapter to start with. Add or remove chapters. Increase or decrease the course workload.What our students say
Your lessons are perfect. I purchased the one-year package and finally have the opportunity to follow various topics of interest without needing to change platforms... I'm grateful for everything you do, I've already recommended you to other people...

Giulio CarloDigital Marketing Student
I like how the lessons are straight to the point and how I can change chapters and skip content I don't need.

Mariana FerresPhotography Student
I like the content and the way videos are presented and transcribed, which speeds up the process!

Luciana AlvarengaNail Design Student
The platform is fast and simple to use. The diversity of content and complementary videos really help with learning.

André FelipePrompt Engineering Student
FAQ
Who is Elevify? How does it work?
Do the courses have certificates?
Are the courses free?
What is the course workload?
What are the courses like?
How do the courses work?
What is the duration of the courses?
What is the cost or price of the courses?
What is an online course and how does it work?
PDF Course