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Power transformers – Fundamentals for specialists (A4213)
Power transformers

3 Days

Who should attend?

Engineers involved in the design and application of transmission networks and also for graduate engineers entering the industry

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What will I learn from this course?

Become conversant with the fundamentals of transformer design, and their application in transmission systems and industrial applications.


A large overview of what power transformers are today and what the future will be through new solutions:

Basic transformer theory
  • Principles
  • Cores
  • Windings
  • Losses
Transformer Cooling
  • Cooling modes
Short circuit withstand
  • Stresses and failure modes
Voltage regulation
  • OLTC, OCTC, Vacutap (Vacuum interrupter tap-changers)
Transformer Connections
  • Delta, star, zigzag
Transformer construction
Transformer protection
  • Bucholz relay, PRV, sudden pressure relay, OTI, WTI
Transformer testing
  • Factory and field testing
Transformer Oil
  • Oil quality tests
  • DGA
Manufacturing & assembling process
  • Core, winding, Bushings and the other accessories assembling
Special transformers
  • Rectifier and furnace transformers
  • Shunt and smoothing reactors
Learning path
Prerequisites A4213 Next step
A4201 This Course A4214
This training can be provided on site at your own convenience.