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Hitachi Energy – Hitachi Energy introduces 800 kilovolt SF6-free breaker at IEEE conference in Chicago

May 5, 2026
Hitachi Energy

Highest ratings ever realized without SF6 will be applied in North Americas new ultra-high voltage transmission grid:

 

  • Hitachi Energy introduces SF6-free dead tank circuit breakers for ultra-high-voltage applications at the IEEE PES T&D Conference in Chicago.
  • The technology addresses a longstanding challenge in high-voltage engineering of eliminating SF6 while maintaining system reliability and dielectric performance.
  • The development reflects a shift in the sector towards transmission solutions that meet environmental and resilience requirements without compromising technical performance.
  • …