| Breaking Capacity: | High Voltage Circuit Breakers |
|---|---|
| Operation: | Energy-storage Type |
| Speed: | Normal Type Circuit Breaker |
| Arc-extinguishing Medium: | Vacuum |
| Installation: | Fixed |
| Structure: | ACB |
| Samples: |
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| Customization: |
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Audited Supplier Are you looking for a high-performance vacuum interrupter for your vacuum circuit breaker? Look no further than our 12kV High-Performance Vacuum Interrupter!
Crafted with a ceramic insulating shell and copper and chromium alloy contact material, this interrupter is designed to provide top-notch performance and reliability. Plus, with a middle sealing or built-in fixed shielding tube, you can rest assured that your circuit breaker will be protected from any potential damage.
But that's not all - our 12kV series vacuum interrupter also features an optimized structure design, ensuring that it operates at peak efficiency and delivers the power you need when you need it. VI is mainly used for ZN*6-12/630-20 and ZN*6-12/630-20 series MV vacuum circuit breaker. Meets or exceeds the requirement of IEC62271-100 and E2 level in GB1984-2003.
Whether you're working in a high-voltage environment or simply need a reliable interrupter for your circuit breaker, our 12kV High-Performance Vacuum Interrupter is the perfect choice.
Specification of VI
| Parameter item | Unit | Data |
| Rated voltage | kV | 7.2/12 |
| Rated current | A | 630 |
| Rated frequency | Hz | 50/60 |
| Rated short-time power frequency withstand voltage(1 min) | kV | 42 |
| Rated lightning impulse withstand voltage | kV | 75 |
| Rated short-circuit breaking current | kA | 20 |
| Rated peak withstand current | kA | 50 |
| Rated short-circuit making current | kA | 50 |
| Rated short-time withstand current | kA | 20 |
| Rated short-circuit duration | s | 4 |
| Rated single capacitor bank breaking circuit | A | 630 |
| Rated back to back capacitor bank breaking current | A | 400 |
| Breaking operation of rated short circuit breaking current | times | 30 |
| Mechanical life | times | 10000 |
| Contact closing force due to bellows and atomsphere | N | 90±30 |
| Force required to hold contact open at full stroke | N | 150±40 |
| Circuit resistance at lowest rated contact force | μΩ | ≤25 |
| Contact limit erosion | mm | 3 |
| Internal gas pressure | Pa | ≤1.33×10-3 |
| Weight of moving parts | kg | 0.6 |
| Storage life | year | 20 |
| Parameter item | Unit | Data |
| Rated clearance between open contacts | mm | 9±1 |
| Average opening speed | m/s | 1.1±0.2 |
| Average closing speed | m/s | 0.6±0.2 |
| Rated contact pressure | N | 2000±200 |
| Contact bouncing duration at closing operation | ms | ≤2 |
| Closing and opening non-simultaneity of contacts | ms | ≤2 |
| Maximum rebound during opening | mm | ≤2 |
| Rated contact stroke | mm | 3.5±0.5 |
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