Ring Main Circuit Breaker

Typical uses

• Simple outdoor substation, customer transfer substations and distribution substations
  
• Industrial plants and underground stations

Highly Reliability

• At atmospheric gas pressure, it ensure the rated insulation and interruption capabilities.
  
• Pure puffer techniques, no leakage current path between open contacts.
  
• Switchgear vessel made of stainless steel
  
• Maintenance-free concept
  
• SF6 gas insulation and interruption.
  
• Sealed pressure system
  
• Climate-independent

Safety

• Safe-to-touch and hermetically sealed enclosure
  
• Overpressure relief device
  
• Low gas presure interlock device
  
• Easy installstion and operation

Control

• Including FRTU function
  
• DSP, μ-processor based control
  
• Overcurrent relay(CB)
  
• Fault indicator
  
• Close/open
  
• Lock/Unlock
  
• Local/Remote
  
• Voltage/Current measuring function
  
• Rechargeable battery with the charger
  
• PT for charging the battery

Feature

• 2way circuit breakers and 2way switchgears combination
  
• Pressure gauge
  
• Earthing bushing

Specification