12kv VS1-12 Permanent Magnetic Indoor High Voltage Vacuum Circuit Breaker
AMBIENT CONDITION
1. the ambient temperature: -15℃ -+40℃
2.the altitude:≤1000M
3.relative humidity: daily average value is not greater than 95%, monthly average is not greater than 90%
4.the surrounding air is not corrosive and flammable gas,steam and other significant pollution
5.Earthquake intensity:≤8 degree
TECHNICAL SPECIFICATION
| NO. |
Item |
Units | Parameters | ||||
| 1 | Rated voltage | KV | 12 | ||||
| 2 | Rated frequency | Hz | 50 | ||||
| 3 | Rated insulation level | Rated lightning impulse voltage tolerance | KA | To earth/Phase to Phase 42/48 | |||
| 1 Min frequency voltage | To earth/Phase to Phase75/85 | ||||||
| 3 | Rated short-circuit breaking current | KA | 20 | 25 | 31.5 | 40 | |
| 4 | Rated current | A | 630 | 630 | 1250 1600 | 1250 1600 | |
| 5 | 1250 | 1250 | 2000 2500 | 2000 2500 | |||
| 6 | Rated short circuit withstand current | KA | 20 | 25 | 31.5 | 40 | |
| 7 | Rated peak withstand current | 50 | 63 | 80 | 100 | ||
| 8 | Rated short-circuit closing current(peak) | 50 | 63 | 80 | 100 | ||
| 9 | Duration of rated short circuit current | S | 4 | ||||
| 10 | Mechanical life | Time | 10000 | ||||
| 11 | Frequency tolerance of the secondary circuit voltage(1 min) | V | 2000 | ||||
| 12 | Rated operating sequence | O-0.3s-CO-180s-CO | |||||
| O-180s-CO-180s-CO | |||||||
OVERALL DIMENSION
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