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Power transformers – Definition and operational constraints (A4212)
Power transformers
Duration

4 Days

Who should attend?

Engineers and operators

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What will I learn from this course?
  • Define power transformers
  • Operate and optimize power transformers
Topics
Technical features
  • Reminder
  • Operation, losses (iron, copper and other losses)
  • Technology and manufacturing
  • Parallel operation
  • Operational constraints, perturbations (overvoltage, overcurrent…) harmonics, neutral plan
Components
  • Bushings
  • Safety valve
  • Current transformers
  • Oil level
  • Temperature monitoring
  • Valves
  • Tap changers, control mechanism
  • Auxiliary cubicle
Cooling
  • Cooling systems
Voltage setting
  • On- or off-load, voltage and coupling changes
Protection
  • Tank earth protection, differential protection, Buchhols relay, PRV, and other protection systems
Sizing and testing of transformers
  • Parameters for sizing of transformers
  • Supplementary parameters for special transformers
  • Testing
Maintenance
  • Oil sampling and analysis
  • Interpretation of the results
  • Oil processing
  • Visual inspections, information on the nameplate
  • Support to diagnosis
Learning path
Prerequisites A4212 Next step
Fundamentals of electricity mechanics
and electro-technics		 80% theoretical
20% Case study		 C4532
This training can be provided on site at your own convenience.