Indoor high voltage vacuum circuit breaker for switchgear panels
Applying ambient conditions:
Ambient temperature: -10°C~+40°C
Relative humidity: the average humidity of a day should be no more than 95%. The average humidity of a month should be no more than 90%
Earthquake intensity: not exceed 8 degrees
Saturated vapor pressure: the average pressure of a day should be no more than 2.2kPa; the average pressure of a month should be no more than 1.8Kpa
The height above sea level: ≤ 1000 m (Except special requirements)
It should be installed in the places without fire, explosion, serious filth, and chemical erosion and violent vibration.
Main Technical Specification:
No. | Item | Unit | Data | ||||||||
1 | Rated voltage | KV | 12 | ||||||||
2 | Rated frequency | Hz | 50 | ||||||||
3 | Rated insulation level | 1minpower frequency withstand voltage | KV | 42 | |||||||
Rated lightning impulse withstand voltage | KV | 75 | |||||||||
4 | Rated current | A | 630 | 1000 | 1250 | 1600 | 2000 | 2500 | 3150 | 4000* | |
5 | Rated short-circuit breaking current Rated short-time withstand current (virtual value) | KA | 20 | 20 | 20 | ||||||
25 | 25 | 25 | 25 | ||||||||
31. 5 | 31. 5 | 31. 5 | 31. 5 | 31. 5 | |||||||
40 | 40 | 40 | 40 | 40 | 40 | ||||||
50 | |||||||||||
6 | Rated short-circuit making current (peak) Rated dynamic stability current (peak) | 50 | 50 | 50 | |||||||
63 | 63 | 63 | 63 | ||||||||
KA | 80 | 80 | 80 | 80 | 80 | ||||||
100 | 100 | 100 | 100 | 100 | 100 | ||||||
125 | |||||||||||
7 | Rated short-circuit breaking current breaking time | Times | 50,30 (40kAand above) | ||||||||
8 | Rated short-circuit duration | s | 4 | ||||||||
9 | Rated operation sequence | O-0. 3s-CO-180s-CO,O-180s-CO-180s-CO(40kAand above) | |||||||||
