| 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 |
9±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 |
|
