| Customization: | Available |
|---|---|
| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Electric Type |
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
| Main technical parameter | Value |
| Rated voltage | 12kV |
| Rated current | 630A |
| Rated frequency | 50Hz |
| Rated short-time power frequency withstand voltage (1 min) | 42kV |
| Rated lightning impulse withstand voltage | 75kV |
| Rated short-time withstand current | 20KA |
| Rated duration of short-circuit | 4 s |
| Rated peak withstand current | 50KA |
| Rated short-circuit making current (peak) | 50kA |
| Rated active load breaking current | 630A |
| Rated closed-loop breaking current | 630A |
| Rated cable-charing breaking current | 10A |
| Rated breaking current of single capacitor bank | 400A |
| Circuit resistance at lowest rated contact force | ≤45μΩ |
| Closing force due to bellow and atmosphere | 70±40N |
| Force required to hold contacts open at full storke | 120±40N |
| Contacts limit erosion | 3mm |
| Mechanical endurance | 10000 times |
| Weight of movable parts | ≤0.6kg |
| Storage life | 20 years |
| MECHANICAL DATA RQUIRED FOR THE MATCHEDVACUUM SWITCHGEAR | Value |
| Clearance between opening contacts | 8±1mm |
| Average opening speed | 1.0±0.2 m/s |
| Average closing speed | 0.6±0.2 m/s |
| Rated contacts pressure | 900±500N |
| Contacts bouncing duration at closing operation | ≤2ms |
| Synchronism of three phases | ≤2ms |
| Contacts re-bouncing clearance at opening operation | ≤3mm |
){kind=link}