LIFE SF6-FREE GIS
- Technology Supplier (Hardware)
- Grid Infrastructures - Electricity
- Energy Efficiency
- Decarbonisation of Industry
LIFE SF6-FREE GIS
While you use a low-voltage circuit breaker to switch power on and off in your domestic network, electrical utilities use high-voltage circuit breakers. Circuit breakers run along the electrical grid to power cities from high-voltage substations. However, when space is a constraint, the circuit breaker is compacted in a gas-insulated substation together with the other electrical devices. For more than half a century, SF6 gas has been used in high-voltage substations as an insulating medium and to cut the current and redirect the power flow more effectively. The drawback is that SF6 has a very high global warming potential and remains in the atmosphere for roughly 1,000 years.
That’s why our project aims to develop a new gas-insulated substation (GIS) at 245 kilovolts dedicated to applications with space constraints such as urban areas and offshore platforms. The new GIS will use a gaseous mixture as an alternative to SF6. The objective is to propose a technically and economically viable solution with equivalent dimensions as the SF6 substation but with a reduced carbon footprint.
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