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Circuit breaker GL type - above 250 kV
Operation and Maintenance or Erection and Commissioning (V5642)
Circuit breaker GL type above 250 kV
Duration

3-4 days

Who should attend?

Technicians involved in the installation and maintenance of high voltage substations.

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What will I learn from this course?
  • Apply the maintenance procedures of the GL Circuit breaker and the associated mechanism*
  • Perform the erection and the commissioning of the high voltage circuit breaker**
  • Carry out corrective maintenance in case of minor failure
  • Apply the safety rules
Topics

SF6 circuit breakers

  • Presentation of the SF6 Circuit breakers GL range
  • Pole architecture, operating sequences of interrupting chamber
  • Breaking electrical phenomena
  • Arc extinguishing
  • Precautions and security

Spring operating mechanism FK3

  • General remarks, security provision
  • Operating principle (kinematics, energy transfer)
  • Breakdown repair methodology, interchangeability

SF6 monitoring

  • SF6 monitoring device, SF6 pressure variation curves

Maintenance and tooling for high voltage circuit breakers*

  • Maintenance plan, dedicated tooling for maintenance
  • Wear measurements of contacts
  • Spring operating mechanism LV diagrams
  • LV diagrams: special functions, possible options

Erection and commissioning of high voltage circuit breakers**

  • Erection and adjustment of the circuit breaker
  • Measurements for commissioning
  • First trouble-shooting during commissioning
*topic trained in module “Operation & Maintenance”
**topic trained in module “Erection & Commissioning”
Note: Practical work may differ, depending on the materials available on site and the time available for the chosen training. Please don’t hesitate to contact us for more details
Learning path
Prerequisites V5642 Next step
Fundamentals of electricity and mechanics This course V8142-V8342