SF₆ gas and GIS, what you need to know!
SF₆ (sulfur hexafluoride) gas is an inert, odorless, and colorless gas. Its high stability is based on the perfect symmetrical arrangement of its six fluorine atoms around its central sulfur atom.
SF6 gas is widely used in metal-enclosed substations (PSEM, also known by their English name GIS).
It ensures proper functioning, optimal performance and safety for high voltage equipment.
Why use SF₆ gas in GIS?
- Excellent insulating and dielectric properties
- Resistance to short circuits and electric arcs
- Reducing the footprint of GIS installations compared to conventional stations
The challenges of SF₆
- Greenhouse gas with high global warming potential
- Strict regulations to limit emissions
- Need for rigorous equipment maintenance to avoid leaks
- After a long period of operation and stagnation, SF6 becomes degradable and requires regeneration, or recycling or replacement.
- Used under high pressures in electrical installations and equipment.
Grid Energy Company solutions
- SF6 gas handling by our trained and qualified specialists
- GIS Maintenance and Expertise: Detection and Elimination of SF₆ Leaks
- Analysis of the intrinsic characteristics of SF6 used to define its level of degradation.
- SF₆ Recovery and Recycling: For Responsible Management in Compliance with Environmental Standards
- Training and support:
Raising awareness of SF₆ best practices
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