Product Description
The GN19-12kV indoor high-voltage isolating switch is designed for 12kV, 50Hz three-phase AC power networks and is widely used in substations, high-voltage distribution cabinets, and power transmission and transformation projects.
GN19-12kV indoor high voltage isolation switch creates a clearly visible break when opened, complying with relevant electrical safety standards and ensuring safety during equipment maintenance.
GN19-12kV indoor high voltage isolation switch utilizes high-performance silicone rubber insulators; creepage distance specifications can be customized to meet specific client or project requirements, enhancing pollution and aging resistance to suit various harsh and complex operating environments.
It features a manually operated mechanism that is robust, stable, and smooth to operate. All steel structural components undergo hot-dip galvanizing, significantly enhancing rust and corrosion resistance and ensuring effective operation in harsh conditions such as humid climates and coastal areas with salt spray. The main conductive contacts are silver-plated; the plating thickness can be specified to optimize electrical conductivity and improve arc and heat resistance, thereby ensuring long-term, stable equipment operation.
The switch employs a reliable three-phase ganged operating mechanism, offering ease of installation, commissioning, and maintenance, along with a long mechanical service life. It plays a vital role as a stable and reliable isolation and protection device within medium-voltage power distribution systems.
Product Specifications
|
Product Model |
GN19-12 |
|
Rated Voltage |
12kV |
|
Rated Frequency |
50Hz |
|
Rated Current |
400A, 630A, 1000A, 1250A |
|
Short-time Withstand Current (2s) |
20kA, 31.5kA |
|
Peak Withstand Current |
50kA, 80kA |
|
Operation Mode |
Manual operation (CS6-1 operating mechanism) |
|
Installation Type |
Indoor vertical installation |
|
Insulation Material |
High-performance silicone rubber |
|
Conductive Material |
High-purity copper with silver-plated contact surface (customizable coating thickness) |
|
Surface Treatment |
Hot-dip galvanizing for all steel components |
|
Structural Design |
Three-pole linkage synchronous operation |
|
Mechanical Life |
More than 2000 operating cycles |
|
Working Environment |
Suitable for conventional indoor, humid and coastal anti-corrosion working conditions |
|
Main Function |
No-load opening and closing, power isolation, visible breaking gap for maintenance safety |
Our Product Advantage
Optimized contact structure The main conductive contacts are silver-plated, and the silver plating thickness can be customized. It effectively reduces contact resistance, lessens heat generation during continuous operation and ensures stable electrical conductivity.
Flexible insulation configuration High-performance silicone rubber insulators are adopted. The creepage distance can be adjusted according to site conditions to adapt to various harsh operating environments.
Reliable anti-corrosion performance All steel structural parts are processed by hot-dip galvanizing. The coating is uniform and firm with stable rust and corrosion resistance, suitable for humid areas and coastal sites with salt spray.
Smooth three-pole linkage mechanism It features synchronous three-phase opening and closing. The operation is smooth with long mechanical service life, stable working condition and low maintenance.
Visible safety isolation gap A clear physical gap will be formed after opening. Maintenance staff can directly check the power status. It complies with safety standards and protects operators.
Complete range of current specifications Rated currents of 400A, 630A, 1000A and 1250A are available to meet the selection requirements of substations, cabinet assembly and various power distribution projects.
Direct factory supply with project customization support Manufactured by Yueqing Jasco Electric. Every unit passes strict factory inspection. A full set of certificates can be provided to meet all customized requirements.
Mounting Dimensions
GN19-12 Indoor High Voltage Isolation Switch Outline & Installation Drawing
- Unit: mm
- Overall height: 948
- Total phase center distance: 700
- Phase spacing: 250
- Mounting width A: 240
FAQ
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