Article

SINTEF, NTNU, and ABB are collaborating to develop SF₆-free circuit breakers for the Norwegian power grid, responding to EU regulations mandating the phasing out of sulphur hexafluoride due to its significant greenhouse gas impact. New medium-voltage breakers must be SF₆-free from January 2023, with high-voltage systems required by 2032.

The project employs pressurized air for insulation, aiming to address both SF₆ and PFAS concerns, with early prototypes yielding positive results. This initiative is part of a broader commitment to green transition and innovation in Norwegian industry.