The LW-550(P) high voltage AC SF6 pole circuit breaker is a three-phase AC 50Hz outdoor high-voltage switching device, which can be used for the control and protection of power systems, as well as a liaison circuit breaker. This circuit breaker is a new product independently developed by our company to meet the power system's requirements for high parameters, high reliability, compactness, and convenient operation and maintenance of ultra-high voltage transmission and transformation equipment. Featuring a rational structure and reliable performance, it significantly surpasses similar domestic products and is the preferred equipment for 550kV power systems.

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