Customization: | Available |
---|---|
Breaking Capacity: | High Voltage Circuit Breakers |
Operation: | Manual Type |
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NO. | ltem | Units | Parameters | |||
1 | Rated voltage | kV | 12 | |||
2 | Rated current | A | 630~1250 | 1250 | 1250 | |
3 | Rated short-circuit breaking current | kA | 20 | 25 | 31.5 | |
4 | Rated short-circuit closing current | kA | 50 | 63 | 80 | |
5 | Rated peak withstand current | kA | 50 | 63 | 80 | |
6 | 4S rated shor-circuit withstand current | kA | 20 | 25 | 31.5 | |
7 | Rated | 1min power frequency voltage | kV | 42(fracture 48) | ||
insulation level | Lightning Impulse Withstand voltage(peak) | 75 (fracture 65) | ||||
8 | Rated operating sequence | O-0.3S-CO-180S-Co | ||||
9 | Mechanism life | Times | 10000 | |||
10 | Opening times of rated short-circuit breaking current | Times | 50 | |||
11 | Rated operator closing voltage(DC) | V | AC/DC 220,110 | |||
12 | Rated operator opening voltage(DC) | V | AC/DC 220,110 | |||
13 | Clearance between open contact | mm | 11±1 | |||
14 | Over-travel(Contact spring compression degree) | mm | 3.5±0.5 | |||
15 | Three phase points,closing bounce time | ms | ≤2 | |||
16 | Contact closing bounce time | ms | ≤2 | |||
17 | Average opening speed | m/s | 1.1±0.2 | |||
18 | Average closing speed | m/s | 0.6±0.2 |