| Customization: | Available |
|---|---|
| Electricity Type: | AC |
| Number of Pole: | 3 |
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Introducing our 40.5kV series vacuum interrupter - a game-changing product that is sure to revolutionize the transmission and distribution of electrical power grids. With a ceramic insulating shell, a middle sealing or built-in fixed shielding tube, and copper and chromium alloy contact material, this product is designed to deliver unparalleled performance and reliability.
Our engineers have optimized the structure design of the cup-shaped longitudinal magnetic electrode to ensure that the electromagnetic field distribution is uniform, reasonable, and improves the stability of the breaking capacity. Additionally, a special sophisticated process has been implemented to improve the insulation level of the product, making it one of the most advanced vacuum interrupters on the market.
This product is perfectly matched with relevant indoor and outdoor vacuum circuit breakers or vacuum distribution devices, making it an ideal control and protection device for power grids with a frequency of 50Hz/60Hz, a rated voltage of 40.5kV, rated current of 630A-2500A, and rated short circuit breaking current of 12.5kA-31.5kA. VI is mainly applied to VZW7-40.5kV series outdoor vacuum circuit breaker. Meets or exceeds the requirement of IEC62271-100 and E2 level in GB1984-2003.
Specification of VI
| Parameter item | Unit | Data |
| Rated voltage | kV | 36/40.5 |
| Rated current | A | 1250/1600 |
| Rated frequency | Hz | 50/60 |
| Rated short-time power frequency withstand voltage(1 min) | kV | 95 |
| Rated lightning impulse withstand voltage | kV | 185 |
| Rated short-circuit breaking current | kA | 25/31.5 |
| Rated peak withstand current | kA | 63/80 |
| Rated short-circuit making current | kA | 63/80 |
| Rated short-time withstand current | kA | 25/31.5 |
| 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 | 200±50 |
| Force required to hold contact open at full stroke | N | 320±60 |
| 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 | 3.0 |
| Storage life | year | 20 |
| Parameter item | Unit | Data |
| Rated clearance between open contacts | mm | 22±1 |
| Average opening speed | m/s | 1.6±0.2 |
| Average closing speed | m/s | 0.7±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 | 8± |
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