• 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

3-4 days

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

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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

SF₆ monitoring

• SF₆ monitoring device, SF₆ pressure variation curves