GIS Testing: Ensure Safe, Reliable Power Infrastructure
Gas-Insulated Switchgear (GIS) is a compact, high-voltage equipment critical to power systems. SLPL offers advanced GIS Testing services that ensure operational safety, extended equipment lifespan, and fault-free performance. Our expert team follows IEC standards to deliver accurate diagnostics and reliable results.
What is GIS and How Does It Work?
GIS is an enclosed system that uses SF₆ gas (Sulfur Hexafluoride) for insulation. It contains high-voltage components like circuit breakers and disconnectors within a sealed metal casing. During faults, arc formation occurs between breaker contacts, and SF₆ gas extinguishes it instantly due to its high dielectric strength. Once the arc is cleared, the gas is recollected, pressurized, and reused.
Our GIS Testing Services Include:
- Pre-Test Preparation
- Insulation Resistance Test
- Gas Leakage Test
- Partial Discharge Test
- Dielectric Test
- Mechanical Operation Test
Why GIS Testing Matters
GIS systems are expected to last 35–50 years and withstand all voltage loads without failure. Routine testing ensures:
Early detection of insulation flaws
Prevention of catastrophic equipment failure
Compliance with international standards (IEC)
Safe operations and reduced downtime