Gas-insulated switchgear (GIS) is designed for decades of reliable service — but hidden threats are always at work. Here are the most common causes of premature failure:
- Moisture Ingress
Tiny leaks or permeation allow moisture into GIS compartments, leading to insulation breakdown, corrosion, and faults. - Contaminants & Particles
Metallic dust, fibres, or dirt inside compartments can trigger partial discharges and insulation damage. - Gas Leaks
Loss of SF₆ or Dry Air reduces dielectric strength, raising the risk of flashovers. - Thermal Stress
Overheating from load cycles and poor contact resistance weakens components over time. - Aging & Poor Maintenance
Deferred inspections, limited OEM service availability, and budget constraints increase asset risk.
The #1 Preventable Cause? Moisture.
Moisture is the silent killer inside GIS. Traditional fixes are costly and disruptive:
- OEM interventions can cost $40–50K and take 50+ days
- Gas carts and heating require outages — and unplanned outages cost even more
The Smarter Solution: EMT Gas-Dry
- No downtime. No gas loss. No pressure drop
- Non-invasive, IEC-compliant moisture removal
- Compatible with both SF₆ and Dry Air systems
- Saves time, labour, and operational costs
- In stock now for immediate deployment
