| Customization: | Available |
|---|---|
| Electricity Type: | AC |
| Number of Pole: | 3 |
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Introducing the 12kV VAC305/305A High-Performance Vacuum Interrupter, the ultimate solution for your vacuum circuit breaker parts needs. This vacuum interrupter is designed to provide reliable and efficient performance in high voltage applications.
Crafted with a ceramic insulating shell, this vacuum interrupter is built to withstand extreme temperatures and harsh environments. The middle sealing or built-in fixed shielding tube ensures maximum protection against external factors, while the copper and chromium alloy contact material guarantees long-lasting durability and superior conductivity. VI is mainly used for VZW32 series MV vacuum circuit breaker. Meets or exceeds the requirement of IEC62271-100 and E2 level in GB1984-2003.
The 12kV series vacuum interrupter is optimized for structure, ensuring that it delivers the highest level of performance possible. With its advanced design, this vacuum interrupter is capable of handling even the most demanding applications with ease.
Specification of VI
| Parameter item | Unit | Data |
| Rated voltage | kV | 12 |
| Rated current | A | 630/1250 |
| 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 | 20/25 |
| Rated peak withstand current | kA | 50/63 |
| Rated short-circuit making current | kA | 50/63 |
| Rated short-time withstand current | kA | 20/25 |
| 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 | 90±30 |
| Force required to hold contact open at full stroke | N | 150±40 |
| Circuit resistance at lowest rated contact force | μΩ | ≤25/≤20 |
| Contact limit erosion | mm | 3 |
| Internal gas pressure | Pa | ≤1.33×10-3 |
| Weight of moving parts | kg | 0.6/0.65 |
| Storage life | year | 20 |
| Parameter item | Unit | Data |
| Rated clearance between open contacts | mm | 8.5±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 2500±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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