12KV Vacuum Interrupter for Vacuum Circuit Breaker
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The 12KV Vacuum Interrupter is a critical component designed for use in vacuum circuit breakers, ensuring the reliability and safety of electrical systems. This high-performance interrupter effectively manages electrical currents, providing robust protection against overcurrents and short circuits. Crafted with precision engineering, it features advanced technology to achieve optimal functionality in demanding environments. With its extended mechanical life and reliable performance specifications, this vacuum interrupter stands out as an essential choice for modern electrical distribution and industrial applications.
Specifications
| Main Technical Specification | Unit | Specification |
|---|---|---|
| Rated voltage | kV | 12 |
| Rated current | A | 630 |
| Rated frequency | Hz | 50 |
| Rated short-time power frequency withstand voltage (1min) | kV | 32 |
| Rated lightning impulse withstand voltage | kV | 75 |
| Rated short-circuit breaking current | kA | 16/20 |
| Rated short-circuit making current (peak) | kA | 40/50 |
| Rated operations of short-circuit breaking current interruption | Times | 30 |
| Rated single capacitor bank breaking current | A | 400 |
| Rated short-time withstand current | kA | 16/20 |
| Rated peak withstand current | kA | 40/50 |
| Rated duration of short-circuit | S | 4 |
| Mechanical life | Times | 30000 |
| Contact closing force due to bellows and atmosphere | N | 120±40 |
| Counterforce at rated contact stroke | N | 180±50 |
| Circuit resistance at rated contact force | μΩ | ≤20 |
| Shelf life | Years | 20 |
| Contact erosion limit | mm | 3 |
| Weight of moving parts | Kg | ≤0.7 |
| Mechanical Data Required For Matched Vacuum Switchgear | Unit | Specification |
| Rated contact stroke | mm | 9±1 |
| Average opening speed | m/s | 1.0±0.25 |
| Average closing speed | m/s | 0.65±0.15 |
| Added contact force | N | 1300/1600±100 |
| Contact bouncing duration at closing operation | ms | ≤2 |
| Contact bouncing bank amplitude of opening operation | mm | ≤2 |
| Three-pole simultaneity | ms | ≤1 |
Additional Information
For optimal performance and longevity, ensure proper installation and regular maintenance of the vacuum interrupter. This component has a shelf life of 20 years, making it a reliable investment for your electrical systems.