Vacuum Interrupter for Outdoor Circuit Breaker is a high-performance current interrupter designed for outdoor power systems. It uses advanced vacuum arc extinguishing technology to quickly extinguish arcs under high fault current conditions. Its design takes into account harsh environmental factors and has excellent weather resistance, corrosion resistance and waterproof capabilities, and can adapt to various outdoor working conditions.
It uses vacuum media to provide excellent arc extinguishing performance, quickly extinguishes arcs when current is interrupted, prevents damage to electrical equipment and power grids, and can work normally under high temperature, high humidity, pollution and severe weather conditions. Compared with traditional oil circuit breakers and gas circuit breakers, Vacuum Interrupter has no harmful gas emissions, meets environmental protection standards, and ensures a green and safe power system.
The Main Application Scenarios Include
1. Substation: used for current interruption and fault protection in high-voltage distribution systems.
2. Urban distribution network: installed in open-air switchgear to protect the power system from short circuit and overload.
3. Wind farm: used for grid access in wind power generation systems, resistant to salt spray and high humidity environments.
4. Solar power generation system: protects the inverter and distribution system of photovoltaic power stations to ensure safe operation of equipment.
5. Power lines: used for current protection and fault isolation of outdoor high-voltage lines to ensure stable power supply.
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Technical Parameters
| MAIN TECHNICAL DATA | ||
| Data | Unit | Value |
| Rated Frequency | Hz | 50 |
| Rated Voltage | kV | 12 |
| Rated Short-duration Withstand Voltage(1min) | kV | 48 |
| Rated Lightning Impulse Withstand Voltage | kV | 85 |
| Rated Current | A | 630 |
| Circuit Resistance at the Lowest Rated Contact Force | μΩ | ≤25 |
| Rated Short-circuit Breaking Current | kA | 25 |
| Rated Short-circuit Breaking Current Breaking Times | Times | 30 |
| Rated Short-duration Withstand Current | kA | 25 |
| Rated Duration of Short-circuit | s | 4 |
| Rated Peak Withstand Current | kA | 63 |
| Rated Short-circuit Making Current | kA | 63 |
| Rated Operaing Sequence | O-0.3(0.5)s-CO-180s-CO | |
| Contact Stroke | mm | 8.5±1 |
| Contact Closing Force | N | 100±30 |
| Force Required to hold contacts open at full stroke | N | 180±50 |
| Average Opening Speed (first 75% stroke) | m/s | 1.5±0.3 |
| Average Closing Speed (last 30% stroke) | m/s | 0.65±0.25 |
| Rated Contact Force | N | 2000±200 |
| Contact Force at the Touch Point | N | 1600±100 |
| Contact Closing Bouncing Duration | ms | ≤2 |
| Contact Opening and Closing Non-simultaneity | ms | ≤2 |
| Contact Opening Rebound Amplitude | mm | ≤2 |
| Storage Life | Years | 20 |
| Mechanical Endurance | Times | 10000 |
| Contact Erosion Limit | mm | 3 |
