40.5KV SF6 gas filling cabinet spring isolation operating mechanism

The RNG-40.5-03 is a dedicated 40.5kV isolation operating mechanism, ideally paired with SF6 gas-filling cabinets or medium-voltage switchgear for power system isolation control. It integrates reliable mechanical actuation—supporting both manual operation (for emergency scenarios without power) and optional spring-assisted drive, ensuring smooth, precise switching.

Equipped with multi-level mechanical interlocks, it strictly prevents misoperations like live isolation or incorrect grounding, maximizing operational safety. Its robust structure resists dust and moisture, adapting to substations, industrial distribution networks, and box-type switch stations. Compliant with IEC and GB standards, it delivers long mechanical lifespan and stable performance, serving as a core isolation control component for high-voltage circuits.

0peratinginstructions for spring mechanism
Closing operation
Make sure to check the products without transportation will be fixed on thedeformation mechanism of load switch, the use of the operating handle is insertedinto the upper part of special institutions, clockwise rotation about 90 degrees, theload in the body under the action ofthe spring force main loop switch. Or the electricoperation, press the closing button, the motor drives the mechanism to completethe switch on and turn operation, at this time can not carry on the ground operation.
Switching operation
The operating handle is inserted into the upper part of the mechanism and rotatescounterclockwise about 90 degrees, and the load switch is operated under theaction of the force of the mechanism spring, and the main circuit is split. Or electricoperation, according to the switch button, the motor drives the mechanism tocomplete the switching operation, at this time, it can do the closing operation or thegrounding operation.
Earthing closing and earthing switching operation
The operating handle is inserted into the lower part of the mechanism and rotatesabout 90 degrees clockwise. The load switch is closed to the ground circuit underthe action of the force of the mechanism spring, so that the main circuit closingoperation can not be performed at this time.The operating handle rotates about 90 degrees counterclockwise, and the loadswitch switches the grounding circuit under the action ofthe force of the mechanismspring, which can be used for closing operation or grounding operation.

Model composition and meaning