Three-Phase Transformer Course
Gain mastery over three-phase transformers from 33 kV to 132 kV. The course teaches design principles, vector groups, sizing methods, protection strategies, one-line diagrams, and field testing procedures, empowering you to specify, commission, and manage substation transformers safely and effectively with full confidence.

from 4 to 360h flexible workload
valid certificate in your country
What will I learn?
This course builds hands-on skills for choosing, sizing, wiring, safeguarding, and starting up three-phase transformers rated 33 kV to 132 kV. You will cover basics of power systems, vector groups, tap changers, fault calculations, one-line diagrams, relay coordination, and on-site testing to confidently design, specify, and run safe, reliable, efficient transformer setups.
Elevify advantages
Develop skills
- Size three-phase transformers using MVA, kV, and current formulas in real work.
- Interpret substation one-line diagrams for symbols, power flow, and switching quickly.
- Select vector groups like delta or wye for handling grounding, faults, and harmonics.
- Configure protection settings including CT/PT ratios, relay pickups, and fault limits.
- Conduct field tests for phasing, polarity, oil quality, and insulation prior to energizing.
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
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