Type: | High-voltage |
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Structure: | Three-column Disconnector |
Installation: | Outdoor High-voltage |
Operation: | Electric |
Grounding Mode: | Grounding |
Movement Mode: | Horizontal Rotary Type |
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 Withstand Current and Duration | Isolation Switch | kA/s | 20/4 | 25/4 | 25/4 | 31.5/4 |
Earthing Switch | 20/2 | 25/2 | 25/2 | 31.5/2 | |||
5 | Rated peak withstand current | kA | 50(63) | ||||
6 | Rated short-time power frequency withstand voltage | Interphase, to earth(dry) | kV/min | 42/1 | |||
Fracture(dry) | 48/1 | ||||||
Interphase, to earth(wet) | 42/1 | ||||||
7 | Rated lightning impulse withstand voltage | Interphase, to earth | kV | 75 | |||
Fracture | 85 | ||||||
8 | Circuit resistance | μΩ | ≤100 | ≤80 | |||
9 | Mechanical life | Times | 3000 | ||||
10 | Creepage distance | mm | ≥372 (e - Level) | ||||
Note: If the altitude is over 1000m, the rated insulation level should be modified as appropriate. |
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