Comparison
AIS vs GIS Switchgear
The difference is the insulating medium, which drives footprint, cost and siting.
| Specification | AIS (Air-Insulated) | GIS (Gas-Insulated) |
|---|---|---|
| Insulation | Air | SF6 gas |
| Footprint | Larger | Compact |
| Cost | Lower | Higher |
| Best for | Open sites with space | Space-constrained/indoor |
Frequently asked questions
- Why choose GIS?
- GIS is compact and suits space-constrained or indoor substations, at higher cost than air-insulated switchgear.
Not sure which to choose?
We will recommend based on your site and load case.