| 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 in need of a high-quality vacuum interrupter for your circuit breaker? Look no further than the 12kv High Voltage Vacuum Interrupter VAC307B! This top-of-the-line product is designed with the latest technology to ensure optimal performance and reliability. VI is mainly applied to VZN63-12kV series indoor MV vacuum circuit breaker. Meets or exceeds the requirement of IEC62271-100 and E2 level in GB1984-2003.
Crafted with a ceramic insulating shell and copper and chromium alloy contact material, this vacuum interrupter is built to last. It also features a middle sealing or built-in fixed shielding tube, which provides additional protection and enhances its overall durability.
Whether you're in the market for vacuum circuit breaker parts or simply need a reliable vacuum interrupter for your high voltage applications, the 12kv High Voltage Vacuum Interrupter VAC307B is a perfect choice. With its advanced design and superior construction, you can trust that this product will deliver exceptional performance and longevity.
Specification of VI
| Parameter item | Unit | Data |
| Rated voltage | kV | 12 |
| Rated current | A | 2000 |
| 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 | 31.5 |
| Rated peak withstand current | kA | 80 |
| Rated short-circuit making current | kA | 80 |
| Rated short-time withstand current | kA | 31.5 |
| Rated short-circuit duration | s | 4 |
| Rated single capacitor bank breaking current | 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 | 160±50 |
| Force required to hold contact open at full stroke | N | 260±50 |
| Circuit resistance at lowest rated contact force | μΩ | ≤20 |
| Contact limit erosion | mm | 3 |
| Internal gas pressure | Pa | ≤1.33×10-3 |
| Weight of moving parts | kg | 1.6 |
| Storage life | year | 20 |
| Parameter item | Unit | Data |
| Rated clearance between open contacts | mm | 11±1 |
| Average opening speed | m/s | 1.1±0.2 |
| Average closing speed | m/s | 0.6±0.2 |
| Rated contact pressure | N | 3100±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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