Sulphur hexafluoride SF₆

• Precautions and security, handling and recovery

Breaking electrical phenomena

Development of SF₆ generator circuit breakers

• Display steps of extinguishing in SF₆
• Arc extinguishing

Presentation of the SF₆ circuit breakers FKG2

• Range FKG, pole architecture, operating sequences of interrupting chamber

Mechanical control mechanism LV diagrams

• LV diagrams: special functions, possible options

Mechanical control mechanism FK3-4

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

Maintenance and tooling for SF₆

circuit breakers FKG2

• Maintenance plan, dedicated tooling for maintenance
• Wear measurement of contacts

Mechanical control mechanism LV diagrams

• LV diagrams: special functions, possible options

SF₆ monitoring

• SF₆ monitoring device, density switch, SF6 pressure variation curves filling valve

Practical work on Circuit breakers with associated control mechanisms