Hitachi Energy will install the company’s first eco-efficient EconiQ 420-kV circuit-breaker for Eversource Energy. A game-changing technology that eliminates sulfur hexafluoride (SF6), this will be ...

GE Renewable Energy’s Grid Solutions unveiled its 420 kV, 63 kA g³ gas-insulated substation (GIS) circuit-breaker prototype. The g³ circuit-breaker was presented to a group of transmission utilities ...