Customization: | Available |
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Type: | High-voltage |
Structure: | Three-column Disconnector |
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Technical parameters | ||||
No. | Item | Unit | Data | |
1 | Rated frequency | Hz | 50 | |
2 | Rated voltage | kV | 12 | |
3 | Rated current | A | 630(1250) | |
4 | Rated short-time withstand current and duration | kA/s | 20(25)/4 | |
5 | Rated peak withstand current | kA | 50(63) | |
6 | Rated short-time power frequency withstand voltage | Interphase, to earth(dry) | kV/min | 42/1 |
Interphase, to earth(wet) | 30/1 | |||
Break(dry) | 48/1 | |||
Break(wet) | 36/1 | |||
7 | Rated lightning impulse withstand voltage | Interphase, to earth | kV | 75 |
Break | 85 | |||
8 | Circuit resistance | μΩ | ≤80 | |
9 | Mechanical life | Times | 3000 | |
10 | Pollution grade | e class | ||
11 | Creepage distance | mm | ≥372 | |
Note: If the altitude is over 1000m, the rated insulation level should be modified as appropriate. |