Customization: | Available |
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Breaking Capacity: | High Voltage Circuit Breakers |
Operation: | Manual Type |
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Technical specification | ||||
No. | Item | Unit | Data | |
1 | Rated frequency | Hz | 50 | |
2 | Rated voltage | kV | 12 | |
3 | Rated short-time power frequency withstand voltage | Interphase, to earth(wet) | kV/min | 34/1 |
Interphase, to earth(dry) | 42/1 | |||
Interrupter fracture, isolated fracture(dry test) | 49/1 | |||
Auxiliary control circuit to earth | 2/1 | |||
4 | Rated lightning impulse withstand voltage | Interphase, to earth | kV | 75 |
Arc extinguish chamber Break, Isolation break | 85 | |||
5 | Rated current | A | 630 | |
6 | Rated short-time withstand current and duration | kA/s | 20/4 | |
7 | Rated peak withstand current | kA | 50 | |
8 | Rated short-circuit making current(peak) | 50 | ||
9 | The leak rate of the year | ≤0.5% | ||
10 | Main circuit resistance | μΩ | ≤550 | |
11 | Mechanical life | Times | 10000 | |
Note: If the altitude is over 1000m, the rated insulation level should be modified as appropriate. |