GRANSO:Your Professional SF6 Load Break Switch Manufacturer!
Since its founding in 2010, Granso's first factory has grown into one of China's largest metal component manufacturers. Granso specializes in producing components for switchgear ranging from 7.2kV to 40.5kV, such as interlocks, circuit breakers, load switches, earthing switches, vacuum circuit breakers, and insulation. Through partnerships with renowned brands such as CHNT, DELIXI, and HUAWEI, Granso's annual output value has reached US$60 million.
-
![Sf6 Gas Load Break Switch]()
Sf6 Gas Load Break SwitchThe SF6 gas load-break switch (230mm) is suitable for three-phase AC 50Hz, 12kV ring network power supply systems. It is used to make and break load and overload currents. It can also be used to...view more
Why Choose Us
Our Factory
Owning three factories with 23000+ square meters together, Granso now has over 200+ staff, 25+ technicians. The self-production rate of parts in our company is as high as over 90%.
Quality Control
We rigorously control every process, ensuring our products comply with relevant standards such as GB7251.1, GBT/23359, and JB/T9661.
One-Stop Service
In the pre-sales stage, our team of experts will recommend the most suitable products according to the needs of customers and provide detailed technical consultation.During the sales period, we ensure timely delivery and provide installation guidance.For after-sales, we provide long-term technical support, warranty services and spare parts to help customers maximize the use of products and get reliable maintenance during use.
Specifications
|
Parameter Name |
Unit |
Technical Requirement |
|
Rated Maximum Voltage |
kV |
12 |
|
Rated continuous Current |
A |
630 |
|
Short Time Withstand Current |
kA |
20 |
|
Short-circuit Making Current (peak) |
kA |
50 |
Advantages of SF6 Load Break Switch
High breaking capacity: SF6 load break switch can reliably interrupt circuits under load and short-circuit conditions. Its breaking capacity exceeds that of traditional load break switches, allowing it to handle higher currents and loads.
High electrical and mechanical stability: SF6 load break switch utilizes high-pressure SF6 gas as the arc-quenching medium, providing excellent electrical and mechanical stability. The high insulation performance and arc-quenching capability of SF6 gas enable the load break switch to operate stably under high voltage and large current conditions.
High reliability: SF6 load break switch offers reliable operation and performance in various environmental conditions. It is less affected by humidity, pollution, and other external factors, making it suitable for long-term operation in harsh working environments.
Compact size and lightweight: Compared to traditional air load break switches, SF6 load break switch has a smaller footprint and lighter weight. This makes it more convenient for installation and wiring in field applications, especially in limited space environments.
Long lifespan: Due to the adoption of high-quality materials and designs, SF6 load break switch has a longer service life. Its insulation performance and arc-quenching capability remain stable over long-term use, reducing the need for maintenance and replacement.
1.Ambient temperature: -40°C ~+40°C
2.Relative humidity: Daily average ≤ 95% Monthly average ≤ 90%
3.Altitude: ≤ 2000m
4.Earthquake intensity: ≤ 8 degree
5.No corrosive gas, no combustible gas, no steam and shake.
*Annual leakage rate ≤ 0.1%
*Special conditions: When the altitude > 2000m, please indicate in order to adjust the designing scheme.
Applications of SF6 Load Break Switch
Distribution Networks:
SF6 load break switches are vital in urban and rural medium-voltage distribution networks to control and protect feeders and transformer input/output lines.
Ring Main Units (RMUs):
They are commonly installed in RMUs, which are used in ring main distribution systems to connect, isolate, and switch power.
Power Substations:
These switches are used in substations to manage power flow and provide isolation for maintenance.
Capacitor Banks and No-Load Transformers:
SF6 load break switches can be used for disconnecting no-load transformers and capacitor banks.
Underground and Overhead Lines:
Gas-insulated load break switches are used for branching and classification of both underground and overhead power lines.
Components of SF6 Load Break Switch
Closing Position:
In the SF6 Load Break Switch (LBS), the closing action involves the contacts being enveloped by SF6 gas at a pressure of 2.8 kg/cm2. When the switch is activated, the moving contact is drawn apart, initiating an arc between the contacts.
Movable Contact:
The movable contact within this switch is responsible for modulating the current flow by mechanically maneuvering its contacts at an appropriate speed to either open or close the circuit.
Upper and Lower Stationary Contacts:
Stationary contacts within the switch serve as the points where the LBS actuation triggers the circuit to be made or broken. Always paired, these contacts remain fixed, with the contact connected to the switch actuator being termed as the stationary contact.
Upper and Lower Insulating Cover:
The insulating cover serves as a protective layer surrounding the Load Break Switch (LBS), enhancing its safety by insulating it from external elements.
Arc Chute:
The arc chute consists of a series of metal plates arranged in parallel, insulated from each other. These plates facilitate the cooling, diversion, and safe suppression of electric arcs. Also referred to as arc dividers or splitters, they effectively dissipate arc energy.
Spindle:
A spindle is a rotating shaft equipped with a fixture designed for securing a tool or workpiece. Serving as a positioner, support, and rotary drive for the tool or workpiece, the spindle shaft plays a pivotal role in the operation of the LBS.
Packing and Shipping
|
Packing |
Carton/ Wooden Case / Pallet |
|
Shipping |
Express, Air Freight, Sea Freight, LCL/FCL |
FAQ
We're professional sf6 load break switch manufacturers and suppliers in China, specialized in providing high quality custom service. We warmly welcome you to buy sf6 load break switch at competitive price from our factory.
Sf6 Gas Load Break Switch, sf6 load break switch
