Gas-insulated switchgear | Transmission Products | Siemens ... Siemens range of gas-insulated switchgear (GIS), for rated voltages from 72.5 kV up to 550 kV, is an extremely successful product concept. Since its introduction back in 1968, Siemens has installed switch fields in all climatic zones of the earth, recording over 420,000 years of operation since.[email protected]
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Hitachi ABB Power Grids designs eco substation - reNews ...· Power price fall hurts Statkraft ... with AirPlus™ gas, replacing the industry standard sulfur hexafluoride (SF6), with fiber optic cables instead of traditional copper cables, where possible. Hitachi ABB Power Grids said this was in line with its commitment to work with alternative eco-efficient gasses to reduce carbon footprint.
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