8DQ1 up to 550 kV

In 1976, Siemens supplied the first gas-insulated substation for a rated voltage of 420 kV. 
An ongoing process of improvement has led to today's 8DQ1 suitable up to the 550 kV voltage range. With this type, a gas-insulated switchgear, notable for its high degree of versatility and reliability, has been developed.  

Our 8DQ1 belongs to the world leading gas-insulated switchgears in terms of:
  • economic efficiency
  • high reliability
  • safe encapsulation
  • low operating costs
  • ease of access and
  • high availability

- Leaflet GIS 8DQ1 up to 420 kV
- Leaflet GIS 8DQ1 up to 550 kV
- Standard Unit Double Busbar
- Flyer 8DQ1 420 kV63 kA4000 A

Reference : siemens ( siemens\Power Transmission\High Voltage Substations\Gas Insulated Switchgear)

8DQ1 up to 550 kV


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