LW30-126(72.5)T/T3150-40 Type High Voltage AC SF6 Tank Circuit Breaker

The LW30-126(72.5)T high voltage AC SF₆ tank circuit breaker integrates the circuit breaker and current transformer into a single unit, with the arc-extinguishing chamber horizontally installed in a grounded aluminum alloy casing. It is equipped with a CT26 spring operating mechanism, featuring fewer components, a simple and compact layout, and robust durability. This breaker meets the requirements for oil-free switching, boasts excellent mechanical characteristics, and high reliability. All critical components are processed using CNC and machining center equipment, and imported international brand bearings (such as IKO, INA, SKF, etc.) are used, enabling a mechanical lifespan of up to 10,000 operations. It is suitable for three-phase AC 50Hz outdoor high-voltage switching equipment and can be used for the control and protection of 72.5(126)kV power transmission and distribution systems. Additionally, it can serve as a tie circuit breaker and for switching capacitor banks.