Three-Phase Transformer Course
This course equips you with vital skills for handling three-phase transformers from 33 kV to 132 kV, covering design principles, vector groups, sizing calculations, protection schemes, one-line diagrams, and field testing procedures. You'll learn to specify, install, and operate substation transformers safely and efficiently, ensuring optimal performance and reliability in power systems.

flexible workload of 4 to 360h
valid certificate in your country
What will I learn?
Gain hands-on expertise in selecting, sizing, connecting, protecting, and commissioning three-phase transformers rated 33 kV to 132 kV. Master essentials like power system basics, vector groups, tap changers, fault analysis, one-line diagrams, relay settings, and on-site testing to confidently design, specify, and manage safe, reliable transformer systems in substations.
Elevify advantages
Develop skills
- Size three-phase transformers using MVA, kV, and current formulas for real-world applications.
- Interpret substation one-line diagrams, including symbols, power flows, and switching paths quickly.
- Select and configure vector groups like delta or wye for effective grounding, fault handling, and harmonic control.
- Set up transformer protection systems, choosing CT/PT ratios, relay settings, and fault thresholds accurately.
- Conduct essential field tests such as phasing, polarity, oil analysis, and insulation checks prior to energisation.
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 workloadWhat our students say
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