| Main Technical Data |
|
|
| Rated voltage |
kv |
3.6 |
| Rated current |
A |
250 |
| Rated frequency |
Hz |
50 |
| Rated short-time power frequency withstand voltage(1min) |
kv |
21 |
| Rated lighting impulse withstand voltage |
kv |
40 |
| Rated making current |
kA |
10 |
| Rated breaking current,max |
kA |
8.0 |
| Rated breaking current,min |
A |
250 |
| Rated making current,limit |
kA |
10 |
| Rated short-time withstand current |
kA |
8.0 |
| Rated duration of short-circuit |
s |
4 |
| Mechanical life |
times |
10×10000 |
| Electricity life AC-3 |
times |
10×10000 |
| Electricity life AC-4 |
times |
10×10000 |
| Rated contact stroke |
mm |
3±0.5 |
| Contact closing force due to bellows and atmosphere |
N |
150±30 |
| Counterforce at rated contact stroke |
N |
200±40 |
| Circuit resistance at rated contact atmosophere force |
μΩ |
≤50 |
| Shelf life |
years |
20 |
| Contact erosion limit |
mm |
3 |
| Weight of moving parts |
kg |
≤0.8 |
| Mechanical Data Required For Matched Vacuum Switchgear |
|
|
| Average opening speed |
m/s |
0.6±0.2 |
| Average closing speed |
m/s |
0.3±0.1 |
| Added contact force |
N |
350±20 |
| 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 |
|
|
