Factory-Direct LN2-40.5 SF6 Circuit Breaker

Overview

The LN2-40.5 circuit breaker is ingeniously designed for high - performance capacitor bank switching operations, excelling in efficiently managing capacitor discharge processes within 750kV and 550kV substations. By harnessing an advanced energy - efficient technology, it showcases remarkable operational capabilities: with a rated short - circuit making current of up to 50kA and a rated breaking current for capacitor banks hitting 3150A, its key parameter performance stands at the forefront of the industry.​

Whether it's interrupting high - voltage motors, operating bus - connected reactors, switching transformers, or dealing with complex scenarios such as line charging and small inductive current switching (including capacitive current switching, shunt reactor switching, and transformer no - load current switching), the LN2-40.5 circuit breaker copes effortlessly. Its reliable performance acts as a safeguard, ensuring the stable and continuous operation of the power system.​

The LN2-40.5 circuit breaker features an innovative LN2 - based insulation system integrated with a high - efficiency arc - extinguishing mechanism. This design enables quick and hassle - free installation of both fixed and withdrawable types without the need to disassemble the arc - extinguishing chamber. It can be directly installed in existing substations, greatly shortening the installation period and reducing labor costs, thereby significantly accelerating the progress of power projects.​

Equipped with a highly flexible and intelligent spring operating mechanism, the LN2-40.5 circuit breaker supports multiple operation modes, including remote control, local operation, and manual emergency operation. This comprehensive functionality fully caters to the diverse requirements of various application scenarios, making the operation process more convenient and intelligent.

Technical Parameters

Installation Dimensions