| Customization: | Available |
|---|---|
| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Energy-storage Type |
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Get ready to experience the power of the 12kV series vacuum interrupter! With its ceramic insulating shell, middle sealing or built-in fixed shielding tube, and copper and chromium alloy contact material, this product is designed to deliver top-notch performance. The cup-shaped longitudinal magnetic electrode has been optimized to ensure uniform electromagnetic field distribution, making it more stable and reliable. Plus, the sophisticated insulation process takes the product's insulation level to new heights.
But that's not all - VACEM has introduced two series of 12kV vacuum interrupter to meet the diverse needs of customers. Whether you need air insulation, embedded insulation, or external insulation protection, we've got you covered. This product is perfect for use as a control and protection device in transmission and distribution electrical power grids with a frequency of 50Hz/60Hz, rated voltage of 12kV, rated current of 630A-4000A, and rated short circuit breaking current of 5kA-40kA.
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 | 25/31.5 |
| Rated peak withstand current | kA | 50 |
| Rated short-circuit making current | kA | 50 |
| Rated short-time withstand current | kA | 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 | ≤20 |
| Contact limit erosion | mm | 3 |
| Internal gas pressure | Pa | ≤1.33×10-3 |
| Weight of moving parts | kg | 0.8 |
| 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 | 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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