Three-Phase Transformer Course
Master three-phase transformers from 33 kV to 132 kV in substations. Gain skills in design, sizing, vector groups, protection, one-line diagrams, relay coordination, and field testing to confidently specify, commission, and operate safe, reliable installations with efficiency and know-how.

from 4 to 360h flexible workload
valid certificate in your country
What will I learn?
This course builds practical skills for selecting, sizing, connecting, protecting, and commissioning three-phase transformers from 33 kV to 132 kV. You'll learn power system basics, vector groups, tap changers, fault calculations, one-line designs, relay coordination, and field testing to design, specify, and run reliable, safe, efficient transformer setups with full confidence.
Elevify advantages
Develop skills
- Size three-phase transformers using MVA, kV, and current formulas right on the job.
- Read substation one-line diagrams: quickly interpret symbols, power flow, and switching paths.
- Configure vector groups: select delta or wye connections for grounding, faults, and harmonics.
- Set up transformer protection: choose CT/PT ratios, relay pickups, and fault limits swiftly.
- Perform field tests: conduct phasing, polarity, oil, and insulation checks before 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 are saying
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