| Main Technical Specification |
Unit |
Specification |
| Rated voltage |
kV |
12 |
| Rated current |
A |
630 |
| Rated frenquency |
Hz |
50 |
| Rated short-time power frequency withstand voltage(1min) |
kV |
42 |
| Rated lightning impulse withstand voltage |
kV |
75 |
| Rated short-circuit breaking current |
kA |
12.5/16/20 |
| Rated short-circuit making current(peak) |
kA |
31.5/40/50 |
| Rated operations of short-circuit breaking current interruption |
Times |
30 |
| Rated single capacitor bank breaking current |
A |
400 |
| Rated short-time withstand current |
kA |
12.5/16/20 |
| Rated peak withstand current |
kA |
31.5/40/50 |
| Rated duration of short-circuit |
S |
4 |
| Mechanical life |
Times |
30000 |
| 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 |
≤20 |
| Shelf life |
Years |
20 |
| Contact erosion limit |
mm |
3 |
| Weight of moving parts |
Kg |
≤0.7 |
| |
| Mechanical Data Required For Matched Vacuum Switchgear |
| Main Technical Specification |
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 |
