China Eberry Vs1-12 Indoor High Voltage Vacuum Circuit Breaker Vcb Side-Mounted 12kv 630A 1250A 25ka 31.5ka, Find details about China Vcb, Vacuum Circuit Breaker from Eberry Vs1-12 Indoor High Voltage Vacuum Circuit Breaker Vcb Side-Mounted 12kv 630A 1250A 25ka 31.5ka
NO | Item | Unit | Technical Parameters | |||
1 | Rated voltage | KV | 12 | |||
2 | Max. working voltage | KV | 12 | |||
3 | Rated current | A | 630 1250 | 630 1250 | 630 1250 1600 | |
4 | Rated short-circuit breaking current | KA | 20 | 25 | 31.5 | |
5 | Rated short circuit closing current | KA | 50 | 63 | 80 | |
6 | Rated peak withstand current | KA | 50 | 63 | 80 | |
7 | 4S rated short circuit withstand current | KA | 20 | 25 | 31.5 | |
8 | Rated insulation level | Power frequency withstand voltage (before and after rated breaking) | KV | 42(Fracture:48) | ||
Impact withstand voltage (before and after rated breaking) | 75(Fracture:84) | |||||
9 | Rated operation sequence | 0-0.3s-Co-180s-Co | ||||
10 | Mechanical life | TIMES | 10000 | |||
11 | Rated short circuit current breaking times | TIMES | 50 | |||
12 | Operating mechanism rated closing voltage (DC) | V | 110,220 | |||
13 | Operating mechanism rated trip current (DC) | V | 110,200 | |||
14 | Contact opening distance | MM | 11±1 | |||
15 | Overtravel(contact spring compression length) | 3.5±0.5 | ||||
16 | Contact closing bounce time | MS | ≤2 | |||
17 | Three-phase split and close bounce time | MS | ≤2 | |||
18 | Average opening speed | M/S | 1.2±0.2 | |||
19 | Average closing speed | M/S | 0.6±0.2 | |||
20 | Opening time | At the highest operating voltage | S | ≤0.05 | ||
At the lowest operating voltage | ≤0.08 | |||||
21 | Closing time | S | 0.1 | |||
22 | Main loop resistance of each phase | μΩ | 60 | 50 | ||
23 | Dynamic and static contacts allow wear cumulative thickness | MM | 3 |