vacuum interrupter for load break switch
Wuhan Feite Electric Co., Ltd. [China] 
Minimum Order: 0
Quality/Safety Certification: 0.00
1.vacuum interrupter
2.Non-exposed arc
3.Once Seal-Exhaust
4.Oxygen-free copper ring transition in sealing structure
| low and high voltage ceramic vacuum interrupter for load break switch | ||
| Main Technical Data | ||
| Rated voltage | kv | 12 |
| Rated current | A | 630 |
| Rated frequency | Hz | 50 |
| Rated short-time power frequency withstand voltage(1min) | kv | 42 |
| Rated lighting impulse withstand voltage | kv | 75 |
| Rated short-time withstand current | kA | 16/20 |
| Rated withstand current(peak) | kA | 40/50 |
| Rated short-circuit making current | kA | 40/50 |
| Rated closed-loop breaking current | A | 630 |
| Rated active load breaking current | A | 630 |
| Rated cable charging breaking current | A | 10 |
| Rated single capacitor bank breaking currentrrent | A | 400 |
| Rated duration of short-circuit | s | 4 |
| Mechanical life | times | 10000 |
| Contact closing force due to bellows and atmosphere | N | 70±40 |
| Counterforce at rated contact stroke | N | 120±50 |
| Circuit resistance at rated contact force | μΩ | ≤45 |
| Shelf life | years | 20 |
| Contact erosion limit | mm | 3 |
| Weight of moving parts | kg | ≤0.7 |
| Mechanical Data Required For Matched Vacuum Switchgear | ||
| Rated contact stroke | mm | 6±1 |
| Average opening speed | m/s | 1.0±0.2 |
| Average closing speed | m/s | 0.65±0.2 |
| Added contact force | N | 700/900±50 |
| Contact bouncing duration at closing operation | ms | ≤2 |
| Contact bouncing bank amplitude of opening operation | ms | ≤2 |
| Three-pole simultaneity | ms | ≤1 |
| Note:Rated characteristics can be given on requirment | ||
