A motor operating 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.Motor operating 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.

Advantages of spring operating mechanisms include

(1) No dedicated control power supply is required. The charging motor has low power consumption and can operate on either AC or DC power, making it convenient.
(2) Absence of hydraulic oil or compressed gas eliminates the need for associated pressure monitoring systems.

Disadvantages include

(1) Relatively complex structure with numerous components requiring high manufacturing precision.
(2) Multiple transmission links increase the potential for operational failures.

This outcoming motor operating mechanism is suitable for a variety of indoor high-voltage SF6 load switchgear. This series of motor operating mechanism adopts planar vortex springs to control the operation of load switches, and the grounding operation is controlled during the process by using compression springs. The working positions are three stations: closing, opening and grounding. The grounding and closing are equipped with mechanical interlocks to prevent misoperation. This product features a moderate volume, convenient installation and use, and strong adaptability.

This motor operating mechanism complies with the relevant requirements of GB3804-2004 "3.6~40.5kv High Voltage AC Load Switch" and GB16926-2009 "AC High Voltage Load Switch Fuse Combined Electrical Apparatus".

Dimension

product-2067-1165

Ordering Instruction

When ordering an electric spring operating mechanism, please specify the voltage level (e.g., DC220, DC110, DC48, DC24, etc.).
If a shunt trip coil is required, please specify the voltage level when ordering. Otherwise, it will be assumed to be the same voltage as the electric operating motor.