Customization: | Available |
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Breaking Capacity: | High Voltage Circuit Breakers |
Operation: | Electric Type |
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1. Altitude:≤1000m;
2. The ambient temperature: not higher than +40ºC. not less than 10ºC(-30ºC is permitted storage)
3. Earthquake does not exceed degree 8;
4. Relative humidit: daily average value is not greater than 95%.monthly average is not greater than 90%; air relative humidity on average less than 2210-3Mpa. on average less than 1.810-3Mpa.
5. The surrounding air is not corrosive and flammable gas, steam and other significant plluion
Item | Units | Parameters | ||
Rated voltage | KV | 12 | ||
Rated current | A | 630-3150 | ||
Rated short- circuit breaking current | KA | 20 | 31.5 | 40 |
Rated short- circuit closing current | KA | 50 | 80 | 100 |
Rated dynamic steady electric current(peak) | KA | 50 | 80 | 100 |
Rated thermal stability current(RMS) | KA | 20 | 31.5 | 40 |
Rated thermal stability time | S | 4 | ||
The breaking times of rated short circuit breaking current | Times | 30 (50) | ||
Open time of CD10 electromagnetic operating mechanism | mS | < 80 | ||
Rated operating sequence | O-0.3s-CO- 180s-CO | |||
A minute power frequency withstand voltage(RMS) | KV | The phase 42, section 48 | ||
Lightning shock pressure | KV | The phase 75, section 85 | ||
Mechanical life | Times | 10000 | ||
Note: 20KA,31.5KA t=0.3s t 1= 180s 40KA t=180s t 1= 180s. |