The Outdoor High-Voltage Vacuum Circuit Breaker is designed for protecting electrical circuits by interrupting the flow of current during fault conditions in high-voltage systems. It operates efficiently in outdoor environments, making it suitable for a wide range of industrial, commercial, and power distribution applications. The vacuum circuit breaker provides reliable protection against overloads and short circuits, ensuring the safety and longevity of the electrical infrastructure.
Product Advantages
Effective Arc Quenching: The vacuum technology used in the breaker ensures that electrical arcs are extinguished quickly and effectively, minimizing the risk of system damage during faults.
Long Service Life: The vacuum interrupters have a high lifespan, reducing the frequency of replacements and maintenance.
Low Maintenance Requirements: With fewer moving parts and no need for oil or gas, the breaker requires less maintenance, reducing overall operational costs.
Environmentally Friendly: Unlike other circuit breakers that use harmful gases or oils, this model uses vacuum technology, making it an environmentally friendly option for modern electrical systems.
Product Features
Compact Design: The breaker is designed to be space-efficient, making it easier to install in environments with limited space while maintaining high performance.
Robust Construction: Built to withstand harsh weather conditions, including extreme temperatures, humidity, and UV exposure, ensuring long-term outdoor use.
Wide Voltage Range: It can operate effectively in high-voltage systems, handling voltage levels suitable for a variety of industrial and power grid applications.
Fast Operation: The breaker reacts quickly to fault conditions, minimizing downtime and reducing the risk of damage to connected equipment.
Altitude: Up to 2000m
Ambient Air Temperature: -40°C to +40°C
Wind Speed: <34m/s (equivalent to 700Pa on the cylindrical surface)
Pollution Level: TIV level
No frequent severe vibrations; seismic intensity not exceeding 8 degrees
No fire, explosion, or chemical corrosion in the vicinity.
Gb1984 "AC High Voltage Circuit Breakers"
GB11022 "Common Technical Requirements for High-Voltage Switchgear and Control Equipment Standards"
GB311.1-6 "Insulation Coordination for High Voltage Transmission and Transformation Equipment"
GB763 "Heating of AC High Voltage Electrical Apparatus in Long-Term Operation"
GB2706 "Dynamic and Thermal Stability Test Methods for AC High Voltage Electrical Apparatus"
GB3309 "Mechanical Tests on High-Voltage Switchgear at Ambient Temperature"
DL/T593 "Common Ordering Technical Conditions for High-Voltage Switchgear"
| Item | Unit | Data | |
| Rated Voltage | KV | 24 | |
| Rated Frequency | HZ | 50 | |
| Rated Current | A | 630 | |
| Rated Short-Circuit Breaking Current | KA | 20 | |
| Rated Peak Withstand Current | KA | 50 | |
| Rated Short-Time Withstand Current | KA | 20 | |
| Rated Short-Circuit Closing Current (Peak) | KA | 50 | |
| Mechanical Life | Times | 10000 | |
| Rated Short-Circuit Breaking Current Breaking Times | Times | 30 | |
| Power Frequency Withstand Voltage (1min):Dry (Between Phases, Phase to Ground/Opening) | KV | 65/79 | |
| Lightning Impulse Withstand Voltage (Peak):Between Phases, Phase to Ground/Opening | KV | 125/145 | |
| Power Frequency Withstand Voltage of Secondary Circuit (1min) | KV | 2 | |
1. Lower outlet
2. Current transformer
3. Upper inlet
4. Insulation support
5. Vacuum circuit breaker chamber
6. Conductive clamp
7. Flexible connection
8. Insulation rod
9. Operating mechanism
10. Outer shell
Open: Open
Close: Closed
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