Uses SF6 gas for insulation. The most compact solution, immune to environmental factors.
Uses air as the primary insulating medium. Modular, cost-effective, and easy to repair.
Uses epoxy resin casting. SF6-free, eco-friendly, and eliminates gas leakage risks.
| Feature | AIS | GIS | SIS |
|---|---|---|---|
| Insulating Medium | Air | SF6 Gas | Epoxy Resin |
| Size / Footprint | Large (100%) | Compact (30%) | Compact (40%) |
| Environmental Sensitivity | High (Humidity/Dust) | None (Sealed) | None (Sealed) |
| Maintenance Cycle | Regular Cleaning | Maintenance Free | Maintenance Free |
| Cost | Low (Economical) | High | Medium-High |
| Environmental Impact | Neutral | Greenhouse Gas Risk | Excellent (Eco-Friendly) |
The primary advantage of Gas Insulated Switchgear (GIS) is its compact size. It occupies only about 30% of the space required by AIS. Additionally, the sealed tank design makes it immune to environmental contaminants like dust, salt spray, and humidity.
Yes. SIS does not use SF6 gas, which is a potent greenhouse gas. By using solid epoxy resin for insulation, SIS eliminates the risk of gas leakage, making it the most environmentally friendly option for modern green grids.
Yes, our engineering team can design custom incoming and outgoing cubicle arrangements, busbar bridges, and adapt dimensions to fit into existing substation rooms (Retrofit solutions).
Submit your requirements and receive an initial price estimation within 24 hours.
We assist in designing the primary schematic layout for your substation project.
Full KEMA/CESI type test reports available for all our switchgear series.
We supply complete medium & high voltage solutions, including:
• Air Insulation Series
• Gas Insulation Series
• Switching Devices
• Instrument Transformers
