Paving the Way for the Future: CONNEX for 420 kV Clean Air Applications
Discover how PFISTERER is setting the course for sustainable power transmission with the CONNEX connection system. Qualified for the first time for 420 kV Clean Air switchgear, this innovation offers an environmentally friendly alternative to traditional insulating gases.
Sustainable Power Transmission with Clean Air
The energy industry faces the challenge of drastically reducing the environmental impact of power transmission. A central lever is the replacement of climate-damaging SF6 gas in switchgear. This is where PFISTERER sets new standards: the proven CONNEX connection system has been successfully qualified by Siemens Energy for use in 420 kV Clean Air switchgear.
The Innovation: Clean Air as an Insulating Medium
Clean Air consists of natural components of the ambient air, such as oxygen and nitrogen. It is an environmentally friendly alternative that has no global warming potential. PFISTERER has developed a special bushing for this purpose that meets the increased requirements of this sustainable technology.
Successful Qualification and Type Testing
As the first pluggable system of its kind, CONNEX has passed the dielectric type test with Clean Air in accordance with IEC 62271-203. The design was specifically optimized and tested for use under increased pressure conditions, underscoring its reliability and safety in the high-voltage grid.
Your Advantages at a Glance
- Environmentally Friendly: Support for sustainable technologies through the use of Clean Air.
- Safe: Successful type testing according to international standards.
- Flexible: The first pluggable connection system for 420 kV Clean Air applications.
Would you like to learn more about our pioneering solutions for high-voltage technology? Visit us at Powertage 2026 or contact us directly for a consultation.
