SF₆ circuit breakers

• Live tank versus dead tank breaker design
• Presentation of the HGF/DT circuit breaker range
• Pole architecture, operating sequences of interrupting chamber
• Breaking electrical phenomena
• Arc extinguishing
• Precautions and security

Operating mechanism

• 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
• 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