• Product
  • Suppliers
  • Manufacturers
  • Solutions
  • Free tools
  • Knowledges
  • Experts
  • Communities
Search


40.5kV Manual operating mechanism for SF6 gas filling cabinet spring outgoing line

  • 40.5kV Manual operating mechanism for SF6 gas filling cabinet spring outgoing line

Key attributes

Brand Switchgear parts
Model NO. 40.5kV Manual operating mechanism for SF6 gas filling cabinet spring outgoing line
Rated voltage 40.5kV
Rated normal current 630A
Rated frequency 50/60Hz
Series RNF-40.5

Product descriptions from the supplier

Description

The RNF-40.5-02 is a 40.5kV-specialized manual operation mechanism designed for medium-voltage outlet line circuits, ideally paired with switchgear like SF6 gas-insulated cabinets or metal-clad outlet cabinets. It relies on manual actuation, ensuring reliable switching even without external power—perfect for emergency or remote scenarios where power access is limited.

Integrated with mechanical interlocking, it strictly prevents misoperations such as live switching or incorrect grounding, boosting operational safety. Its compact structure fits tight cabinet spaces, while the durable metal housing resists dust and moisture, adapting to substation, industrial distribution, and box-type switch station environments. Compliant with IEC and GB standards, it delivers stable performance for outlet line control, with a long mechanical lifespan to meet frequent operation needs.

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

Operating mechanism shape and mounting dimensions

FAQ
Q: What are the core functions of the 40.5kV gas cabinet outgoing manual operating mechanism?
A:
Its core functions are focused on outgoing line drive, safety protection, interlock coordination and scenario adaptation, which are essential for the safe operation of the outgoing line system: ① Outgoing line isolation drive: Through manual operation, output stable mechanical force to drive the outgoing line isolator to open/close, realizing reliable isolation of the 40.5kV outgoing line circuit; ② Safety protection: With over-torque protection and position limiting function, avoiding mechanism damage caused by excessive manual operation force and ensuring the outgoing line isolator is in the correct opening/closing position; ③ Interlock coordination: Cooperate with the cabinet door, circuit breaker and PT isolation switch to realize interlock control, preventing misoperations such as live isolation of outgoing lines and closing with grounding; ④ Scenario adaptation: Match the installation dimension and transmission interface of the 40.5kV gas cabinet outgoing line isolator, ensuring smooth power transmission and adapting to the layout of the outgoing line compartment; ⑤ Maintenance convenience: Simple structure, easy manual operation and low maintenance difficulty
Q: What is a 40.5kV gas cabinet outgoing manual operating mechanism?
A:
It is a dedicated manual mechanical component matched with 40.5kV gas cabinet outgoing line isolators, mainly used to drive the outgoing line isolator to complete opening and closing actions, realizing safe isolation and switching of the medium-voltage outgoing line circuit. Its core characteristics include 3 points: ① Matching scenario: Specially designed for 40.5kV SF6 gas-filled cabinets, compact structure, suitable for sealed cabinet space and outgoing line compartment layout; ② Operation mode: Adopt manual operation (handle/hand crank), no external power supply required, stable and reliable; ③ Core function: Drive the outgoing line isolator to move reliably, realize circuit isolation, and cooperate with the cabinet door, circuit breaker and PT (potential transformer) isolation switch to complete mechanical interlock. It is widely used in 40.5kV medium-voltage distribution systems such as power grids, industrial and mining enterprises, and commercial parks.
Know your supplier
Online store
On-time delivery rate
Response time
100.0%
≤4h
Company overview
Workplace: 1000m² Total staff: Highest Annual Export(usD): 300000000
Workplace: 1000m²
Total staff:
Highest Annual Export(usD): 300000000
Services
Business Type: Sales
Main Categories: Low Voltage Electrical Apparatus/Instrument meters/Production equipment/Tester/High Voltage Electrical Apparatus/Electrical fittings/Equipment Parts
Whole life care manager
Whole-life care management services for equipment procurement, use, maintenance, and after-sales, ensuring safe operation of electrical equipment, continuous control, and worry-free electricity consumption.
The equipment supplier has passed platform qualification certification and technical evaluation, ensuring compliance, professionalism, and reliability from the source.

Related Products

Related Knowledges

  • Main Transformer Accidents and Light Gas Operation Issues
    1. Accident Record (March 19, 2019)At 16:13 on March 19, 2019, the monitoring background reported a light gas action of No. 3 main transformer. In accordance with the Code for Operation of Power Transformers (DL/T572-2010), operation and maintenance (O&M) personnel inspected the on-site condition of No. 3 main transformer.On-site confirmation: The WBH non-electrical protection panel of No. 3 main transformer reported a Phase B light gas action of the transformer body, and the reset was ineff
    02/05/2026
  • Faults and Handling of Single-phase Grounding in 10kV Distribution Lines
    Characteristics and Detection Devices for Single-Phase Ground Faults1. Characteristics of Single-Phase Ground FaultsCentral Alarm Signals:The warning bell rings, and the indicator lamp labeled “Ground Fault on [X] kV Bus Section [Y]” illuminates. In systems with a Petersen coil (arc suppression coil) grounding the neutral point, the “Petersen Coil Operated” indicator also lights up.Insulation Monitoring Voltmeter Indications:The voltage of the faulted phase decreases (in
    01/30/2026
  • Neutral point grounding operation mode for 110kV~220kV power grid transformers
    The arrangement of neutral point grounding operation modes for 110kV~220kV power grid transformers shall meet the insulation withstand requirements of transformer neutral points, and shall also strive to keep the zero-sequence impedance of substations basically unchanged, while ensuring that the zero-sequence comprehensive impedance at any short-circuit point in the system does not exceed three times the positive-sequence comprehensive impedance.For 220kV and 110kV transformers in new constructi
    01/29/2026
  • Why Do Substations Use Stones, Gravel, Pebbles, and Crushed Rock?
    Why Do Substations Use Stones, Gravel, Pebbles, and Crushed Rock?In substations, equipment such as power and distribution transformers, transmission lines, voltage transformers, current transformers, and disconnect switches all require grounding. Beyond grounding, we will now explore in depth why gravel and crushed stone are commonly used in substations. Though they appear ordinary, these stones play a critical safety and functional role.In substation grounding design—especially when multiple gr
    01/29/2026
  • Why Must a Transformer Core Be Grounded at Only One Point? Isn't Multi-Point Grounding More Reliable?
    Why Does the Transformer Core Need to Be Grounded?During operation, the transformer core, along with the metal structures, parts, and components that fix the core and windings, are all situated in a strong electric field. Under the influence of this electric field, they acquire a relatively high potential with respect to ground. If the core is not grounded, a potential difference will exist between the core and the grounded clamping structures and tank, which may lead to intermittent discharge.I
    01/29/2026
  • Understanding Transformer Neutral Grounding
    I. What is a Neutral Point?In transformers and generators, the neutral point is a specific point in the winding where the absolute voltage between this point and each external terminal is equal. In the diagram below, pointOrepresents the neutral point.II. Why Does the Neutral Point Need Grounding?The electrical connection method between the neutral point and earth in a three-phase AC power system is called theneutral grounding method. This grounding method directly affects:The safety, reliabilit
    01/29/2026
Haven't found the right supplier yet? Let matching verified suppliers find you. Get Quotation Now
Haven't found the right supplier yet? Let matching verified suppliers find you.
Get Quotation Now
Send inquiry
+86
Click to upload file
Download
Get the IEE Business Application
Use the IEE-Business app to find equipment, obtain solutions, connect with experts, and participate in industry collaboration anytime, anywhere—fully supporting the development of your power projects and business.