Breaking Capacity: | High Voltage Circuit Breakers |
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Operation: | Manual Type |
Arc-extinguishing Medium: | Vacuum |
Installation: | Fixed |
Type: | Circuit Breaker |
Function: | Conventional Circuit Breaker, Overcurrent Protection |
Customization: |
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No. | Item | Unit | Data | ||
1 | Rated frequency | Hz | 50 | ||
2 | Rated voltage | kV | 12 | ||
3 | Rated current | A | 630 | 1250 | |
4 | Rated short-time power frequency withstand voltage |
Interphase, to earth(wet) | kV/min | 34/1 | |
Interphase, to earth(dry) | 42/1 | ||||
Fracture (dry) | 48/1 | ||||
Secondary circuit to earth | 2/1 | ||||
5 | Rated lightning impulse withstand voltage | Interphase, to earth | kV | 75 | |
Fracture | 85 | ||||
6 | Rated short-circuit breaking current | kA | 20/25 | ||
7 | Rated short-circuit making current(peak) | 50/63 | |||
8 | Rated short-time withstand current and duration | kA/s | (20/25)/4 | ||
9 | Rated peak withstand current | kA | 50/63 | ||
10 | Rated short-circuit breaking current breaking times | Times | 30 (E2 Level) | ||
11 | Main circuit resistance | μΩ | ≤80, ≤120, ≤160 | ||
12 | Rated Operating Voltage and Rated Voltage for auxiliary(control) circuit | V | AC/DC220,DC48,DC24 | ||
13 | Mechanical life | Times | 10000 (M2 level) | ||
Note: If the altitude is over 1000m, the rated insulation level should be modified as appropriate. |
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