ELK Hybrid Switchgear up to 550 kV


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Space and cost optimization with proven technology

The simplified GIS, ELK for hybrid applications with ratings from 145 kV to 550 kV combines the advantages of encapsulated technology with the simplicity of air-insulated switchgear (AIS). Our hybrid technology delivers the essential switching and measuring components utilizing ABB’s well proven ELK technology that has been in service for close to five decades. It is the most reliable and economical solution for new installations or extensions, and retrofit of existing substations.


Brief performance data

Hybrid Switchgear ELK      
Rated voltage [kV] 145 420 550
Rated frequency [Hz] 50/60
Rated short-duration power-freq. withstand voltage (1 min) [kV] 275 650 740
Rated lightning impulse withstand voltage (1.2/50 µs) [kV] 650 1425 1675
Rated switching impulse withstand voltage (250 / 2,500 µs) [kV] n/a 1050 1300
Rated normal current – busbar / feeder [A] 2,500 5,000 5,000/6300
Rated short circuit-breaking current [kA] 40 63 63/80
Rated short-time withstand current (up to 3 s) [kA] 40 63 63/80
Rated peak withstand current [kA] 100/104 171 172/216
Ambient temperature range [°C] -30 … +40
Installation outdoor


Why ABB?

  • Proven GIS technology for close to five decades
  • Worldwide footprint and experience
  • Up to 70 percent space reduction compared to conventional AIS
  • Reduced investment costs including transportation and civil works
  • Delivery and installation time of 5-6 months
  • Full substation design flexibility
  • High level of safety due to earthed GIS enclosures and access from ground level to the drives and viewports

Specificatii Tehnice

Disponibilitate N/A
Livrare N/A
Fisa tehnica N/A

Adauga o recenzie

Adauga o recenzie la: ELK Hybrid Switchgear up to 550 kV

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