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The LW36-126 is a premier choice when you need a high-performance 126KV SF6 Circuit Breaker for substation installation. This robust 126kV Outdoor SF6 Breaker is purpose-built to maintain system integrity under extreme weather conditions. As an advanced 126KV High Voltage SF6 Circuit Breaker, it employs sulfur hexafluoride gas to achieve reliable arc quenching and minimal maintenance. Major utilities worldwide depend on this proven 126KV Transmission SF6 Circuit Breaker to secure power flow across long-distance grids.
The LW36-126 SF6 Circuit Breaker utilizes a self-blast interrupter mechanism that significantly reduces operating energy while delivering consistent breaking performance across all fault currents. Its sealed pole structure guarantees a low annual SF6 leakage rate of less than 0.5%, ensuring long service life without gas top-ups. The design integrates a spring-spring or hydraulic operating mechanism, providing reliable operation down to sub-zero temperatures. Modular construction allows for flexible busbar connections and simplifies on-site commissioning. Every unit undergoes rigorous type testing, including mechanical endurance of 10,000 operations and full short-circuit certification, guaranteeing compliance with the latest IEC and ANSI standards.
| Parameter | Value |
|---|---|
| Rated Voltage | 126 kV |
| Rated Frequency | 50 / 60 Hz |
| Rated Normal Current | 2000 A, 3150 A (optional) |
| Rated Short-Circuit Breaking Current | 31.5 kA, 40 kA |
| Rated Short-Time Withstand Current (3s) | 31.5 kA, 40 kA |
| Rated Peak Withstand Current | 80 kA, 100 kA |
| Mechanical Endurance | 10,000 operations |
| SF6 Gas Rated Pressure (20°C) | 0.6 MPa (gauge) |
| Operating Mechanism Type | Spring / Hydraulic |
| Ambient Temperature Range | -40°C to +40°C |
