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SF₆-Free Gas-Insulated Switchgear
SF₆-free gas-insulated switchgear uses clean air as insulating medium. It integrates high-voltage components such as vacuum circuit breakers and three-position switches, housed in a fully enclosed laser-welded stainless steel gas tank. Supported by reliable sealing technology and workmanship, its operation is immune to external environments, suitable for harsh conditions including humidity, high altitude and heavy pollution.
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SF₆-Free & Reliable Insulation
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Advanced Manufacturing & Sealing
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Modular & Flexible Design
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Enhanced Safety & Interlocking
Product Highlights
SF₆-Free & Reliable Insulation
Clean air insulation, GWP < 1.
Advanced Manufacturing & Sealing
Laser-welded stainless steel enclosures with unique sealing and helium leak testing (annual leakage ≤ 0.05%).
Modular & Flexible Design
Modular structure for flexible configuration and expansion. No gas handling during on-site installation or panel replacement.
Enhanced Safety & Interlocking
Independent operating shafts for disconnector and earthing switch prevent maloperation. Individual pressure relief device for each gas compartment.
Technical Specification
Rated Voltage:
Maximum rated voltage: 40.5 kV
Rated Current:
Maximum rated current: 2500 A
Rated Short-Circuit Breaking Current:
Maximum rated short-circuit breaking current: 31.5 kA
Rated Short-Circuit Duration
3s
Insulating Gas
Clean air
Annual Leakage Rate
≤0.05%
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