Sf6 Circuit Breaker Spring Mechanism

A SF₆ circuit breaker spring mechanism uses the energy stored in a pre-charged spring to perform the opening and closing operations of a circuit breaker. Spring charging is typically accomplished by an electric motor. Sf₆ circuit breaker spring mechanism come in various forms depending on the type of spring used. These include: Compression spring mechanisms, Tension spring mechanisms, Torsion spring energy storage mechanisms, Spiral (or coil) spring energy storage mechanisms. The transmission system in these mechanisms is usually based on a four-bar linkage mechanism, though the fundamental operating principles remain consistent across types.

The SF₆ circuit breaker spring mechanism of the fully insulated compact ring main unit is a supporting equipment for the 12KV AC metal-enclosed switch with a rated voltage. This series of SF₆ circuit breaker spring mechanism adopts the planar vortex spring energy storage to control the action of the load switch, and the grounding operation adopts the energy storage control during the compression spring process. The working position has three operation stations: closing, opening and grounding. This series of products features a five-prevention interlock function, small size, easy installation and strong adaptability.

GB3804-2004, GB3906-2006 "3.6~40.5kv High Voltage AC Load Switch"

GB16926-2009 "AC High Voltage Load Switch Fuse Combined Electrical Apparatus"