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Power transformers - OLTC - Operation and maintenance (C4532)
Power transformers - On-load tape changer types
Duration

4 Days

Who should attend?

Technicians in charge of operations and maintenance of OLTC

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What will I learn from this course?
  • Understand the OLTC technology
  • Ensure the operation of transformers with OLTC
  • Ensure the appropriate maintenance according OLTC types
Topics
Types of OLTC
  • Voltage setting, operation zone
  • Description and operation of the OLTC
  • Selector, diverter switch

  • OLTC with oil as switching medium

    - Integrated selector and diverter switch: switching diagram

    - Separated selector and diverter switch: switching diagram

  • OLTC with vacuum switching Technology

    - Integrated selector and diverter switch: switching diagram

    - Separated selector and diverter switch: switching diagram
Components
Function of the different components
Control cubicles
  • Types of control mechanism
Protection
Maintenance of the OLTC and associated equipment
  • Parameters, wearing parts
  • Interchangeability between oil switching and vacuum switching technology
  • Possible evolution
Hands-on
  • Diagram and location of the different parts
  • OLTC : C, D, M and V
  • Complete dismantling of the inserted part
  • Complete assembly of the inserted part
  • Operation of the different types
  • Presentation of the control cubicle
Learning path
Prerequisites C4532 Next step
Fundamentals of electricity
and electro-technics		 50% theoretical
50% Case Study		 A4212
This training can be provided on site at your own convenience.