The GW4 Series Outdoor High Voltage Disconnecting Switch is designed for use in high voltage distribution lines, particularly for performing switching operations with no load under voltage. This series supports rated voltages of 40.5kV, 72.5kV, and 126kV, offering high power frequency withstand voltage and lightning impulse withstand voltage capabilities. The product is built to meet strict mechanical durability standards, with a mechanical life of 2000 operations. The GW4 series disconnecting switch can be equipped with various manual or motorized operating mechanisms, and offers multiple grounding options to ensure efficient and safe operation of the equipment.
| Type | GW4-40.5 |
| Rated Voltage | 40.5kV,72.5kV,126kV |
| 1min Power Frequency Withstand Voltage（Phase-to-Ground） | 95kV,140kV,230kV |
| 1min Power Frequency Withstand Voltage（Phase-to-Break） | 115kV,160kV,245kV |
| Lightning Impulse Withstand Voltage(Peak)（Phase-to-Ground） | 185kV,325kV,550kV |
| Lightning Impulse Withstand Voltage(Peak)（Phase-to-Break） | 215kV,375,kV630kV |
| Rated Frequency | 50Hz |
| Rated Current | 400A,630A,1000A,1250A,1600A,2000A,3150A,4000A |
| Rated Short-Time Withstand Current | 20kA,31.5kA,40kA,50kA |
| Rated Peak Withstand Current | 40kA,50kA,63kA,80kA,100kA,125kA |
| Rated Short-Circuit Duration(MainKnife/Ground Knife) | 4s/2s |
| Rated Terminal Mechanical Horizontal Longitudinal Load | 750N,1000N |
| Rated Terminal Mechanical Horizontal Transverse Load | 500N,750N |
| Rated Terminal Mechanical Vertical Force | 750N,1000N |
| Creepage Distance | 1025~1250mm,1800~2250mm,3150~3900mm |
| Mechanical Life | 2000Times |
| Manual Operating Mechanism（Without Grounding） | CS11(F) |
| Manual Operating Mechanism（Single Grounding） | CS8-6D(F)，CS14G（F），CS11（F） |
| Manual Control Circuit Voltage | AC220V,DC110V,DC220V |
| Motor Operating Mechanism ModelType | CJ6 |
| Motor Voltage | AC380V |
| Motor Control Circuit Voltage | AC220V,AC380V,DC220V |
| Opening/Closing Time | 6±1s |
| Without Grounding Weight | 360kg,500kg,700kg |
| Single Grounding Weight | 410kg,600kg,800kg |
| Double Grounding Weight | 460kg,700kg,900kg |
The disconnecting switch adopts a double-column center-break design with rotating contacts, featuring self-cleaning contact surfaces to enhance contact reliability.
Contact fingers are manufactured from new high-strength, high-conductivity, and high-elasticity materials. The self-elastic clamping force of the contact fingers eliminates issues caused by spring corrosion or thermal annealing (e.g., reduced clamping force, increased contact resistance, and overheating), thereby avoiding operational degradation.
Rotating components are designed for maintenance-free operation. The rotating base is sealed to prevent ingress of moisture, dust, and harmful gases. Bearings are lubricated with molybdenum disulfide lithium-based grease, ensuring long-term anti-corrosion performance, grease retention, and consistent operational torque over extended periods. Stainless steel pins paired with oil-free self-lubricating bearings, combined with hot-dip galvanized steel parts, guarantee flexible, lightweight, reliable operation and permanent corrosion resistance.
中文
English
Pусский
Español