Breaking Capacity: | High Voltage Circuit Breakers |
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Operation: | Electric Type |
Speed: | Normal Type Circuit Breaker |
Arc-extinguishing Medium: | Vacuum |
Installation: | Fixed |
Structure: | ACB |
Customization: |
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No. | Items | Unit | Value | ||||
1 | Rated voltage | KV | 12 | ||||
2 | Rated insulation level | Rated lighting impulse withstand voltage (peak) | KV | Phase,over the ground 75,fracture80 | |||
Short-time power frequency withstand voltage(1min) | KV | Phase,over the ground 42,fracture48 | |||||
3 | Rated short circuit breaking current | KA | 20 | 25 | 31.5 | 40 | |
4 | Rated current |
A | 630 1250 |
630 1250 1600 2000 2500 3150 |
1250 1600 2000 2500 3150 4000 |
||
5 | Rated thermo stability current(valid) | KA | 20 | 25 | 31.5 | 40 | |
6 | Rated dynamic stability current(peak) | KA | 50 | 63 | 80 | 100 | |
7 | Rated short-circuit making current(peak) | KA | 50 | 63 | 80 | 100 | |
8 | Rated operations of short-circuit breaking current interruption | Times | 50(40KA as 30) | ||||
9 | Power frequency withstand voltage of secondary circuit(1 min) | V | 2000 | ||||
10 | Rated operating sequence | opening-0.3S-closing opening-180S- closing opening /opening-180S- closing opening -180S- closing opening (40KA) | |||||
11 | Rated thermo stability time | S | 4 | ||||
12 | Rated breaking current(a capacitor/back to back capacitor) | A | 630/400 800/400(40KA) | ||||
13 | Mechanical life | Times | 30000 |
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