Europe | April 14, 2015

Alstom unveils first HV equipment designed to use g3

Germany, Hannover: Alstom will present two first high-voltage applications using g3 (green gas for grid), a gas mixture that can replace SF6 for high voltage air-insulated or gas-insulated switchgear, at the 2015 Hanover Messe.

 

Germany, Hannover: Alstom will present two first high-voltage applications using g3 (green gas for grid), a gas mixture that can replace SF6 for high voltage air-insulated or gas-insulated switchgear applications, at the 2015 Hanover Messe.

Among them is a 245 kV current transformer type SKF using g3, which the company has displayed in Hannover. This high voltage equipment for outdoor applications uses g3 as insulation medium, with the capability of reaching temperatures as low as -30°C, states the company in the press release.

The company’s SF6-free solution, g3, is a climate friendly solution with a global warming potential (GWP) 98% lower than the GWP of SF6.

With technical performances comparable to SF6, g3 is a suitable technology for the development of a new generation of clean high- and ultra-high voltage equipment. Tests have been successfully performed on actual high-voltage equipment, in compliance with international standards.

Source: Alstom
Image: Alstom