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Gas-Insulated Substations
![]() GE provides a full range of SF6-Gas-Insulated Substations (GIS) for utilities and industries worldwide. The portfolio includes GIS solutions from 50 to 800 kV, along with secondary products to maximize switchgear and network operation. Alternatively, SF6-free GIS using GE’s g3 gas as insulating and switching medium are available up to 145 kV. With GIS experience back to the very beginning of SF6-gas Insulated Substations spanning 50 years across a wide range of industries and applications, GE is a leader in the design, material selection, development, engineering, manufacturing and servicing of GIS equipment. Our solutions have a long operating life span and provide customers with a high level of performance and reliability to meet a variety of operating requirements. GE's GIS portfolio is at the forefront of the technology featuring at some voltage levels new digital and SF6-free solutions along with some of the most compact footprints in the market, and easily accessible, small and light weight components. In addition, both SF6 and SF6-free GIS includes low gas weights and an advanced sealing system. Full digital monitoring control and protection capabilities enable smart grid integration.
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