Outdoor 3 Poles Auto Recloser Outdoor 12kV 630A VCB
Environmental conditions:
1. Environmental temperature: no higher than +40 °C, no less than -40 °C ;
2. Air relative humidity: day average no greater than 95%, on average less than 90%;
3. The altitude does not exceed 2000 m;
4. Wind pressure not more than 700 Pa (equivalent to wind speed 34 m/s);
5. Seismic intensity not more than eight level;
6. No fire, explosion, serious filthy, chemical corrosion and violent vibration of places.
7. If the customers have other special requirements, can be in order to put forward, our company can offer most satisfied.
Mainly Technical Parameters
| NO. | item | unit | value | ||
| 1 | Rated voltage |
KV | 12 | ||
| 2 | Rated current |
A | 630, 1250 | ||
| 3 | Rated frequency | HZ | 50 | ||
| 4 | 1min power frequency withstand voltage | Dry |
KV | 42/48 | |
| Wet | 34 | ||||
| 5 | lightning impulse withstand current (peak) | KV | 75/85 | ||
| 6 | Rated short-circuit breaking current |
KA | 20 | 25 | |
| 7 | Rated short-circuit current (peak) | KA | 50 | 63 | |
| 8 | Rated peak withstand current |
KA | 50 | 63 | |
| 9 | 4s short-time withstand current | KA | 20 | 25 | |
| 10 | Rated operating cycle | sub-0.3s-hop sub-180s-hop sub | |||
| 11 | rated short-circuit current breaking time | times | 30 | ||
| 12 | mechanical life | times | 10000 | ||
| 13 | secondary circuit 1 min power frequency withstand voltage | KV | 2 | ||
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