SF₆ SF6 (or Sulphur Hexafluoride) has been the standard gas used inside high voltage electrical equipment as an insulating and arc-quenching medium. However, SF₆ SF6 is also listed as a potent greenhouse gas according to the Kyoto Protocol, with 24,300 times the comparative Global Warming Potential (GWP) of CO₂ and a lifetime of 1,000 years in the atmosphere. With grid operators across the world becoming increasingly concerned about the environmental impact, GE offers a commercially available and viable alternative to SF₆ SF6 to help utilities and industries reduce their environmental impact.
INTRODUCING g³ G3 INSULATING AND SWITCHING GAS
g³ (pronounced “g cubed”) is GE's game-changing alternative to SF₆ SF6 gas, developed for HV electrical transmission equipment.
g³ products feature the same ratings and same dimensional footprint as the state-of-the-art SF₆ ones, with a drastically reduced environmental impact: some 99% less gas GWP, comparatively. g³ products have a significantly improved life cycle assessment (LCA) compared with SF₆ products and other alternatives. In addition, with product dimensions remaining the same, there is no major increase of raw materials, thus no pollution transfer induced on any other environmental indicators. Also, g³ products operate with no restriction under the same temperature range as SF₆ products (down to -30°C).
Recognizes potential of GE's g³ gas to help cut global greenhouse gas emissions, demonstrating that g³ technology can be applied to all other high-voltage levels of Europe's electrical networks.
Second GE's g³ gas project to be co-funded by the EU within two years. New g³ gas 245 kV circuit-breaker will be scalable to other high-voltage levels across Europe's electrical grids.
First award relates to the development of a SF₆-free 245 kV dead tank circuit-breaker. Second award will focus on the life cycle management of g³ products.
This is the third project co-funded by the EU within 4 years. This new g³ 245 kV GIS will play an important role in meeting demand for compact SF₆-free substations in urban areas, as well as offshore projects
g³ insulating and switching gas is a proven alternative to SF₆ SF6 that provides technical, environmental and financial advantages.
g³ is a fully type-tested gas mixture that provides the same technical performance as SF₆, SF6 while reducing the environmental impact.