| Customization: | Available |
|---|---|
| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Electric Type |
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VS1-12 Indoor High Voltage Vacuum Circuit Breaker is three-phase AC 50Hz, Rated voltage of 12kV indoor device, For industrial and mining enterprises, power plants and substations as electrical equipment control and protection purposes, and for frequent operation of the place. It can be fixed in a switch cabinet or installed on a handcart. Stable performance and easy installation.
Applying Ambient Conditions:
• Ambient temperature: not higher than +40°C, not less than −10°C (at −30°C to allow storage and transportation).
• Altitude: not exceed 1000m.
• Relative humidity: daily average of not more than 95%, saturated vapor pressure on the average of not more than 2.2×10-3MPa, On average not more than 1.8× 10-3MPa.
• Earthquake intensity: not more than eight.
• No fire, explosion hazard, serious filthy, chemical corrosion, as well as places of intense vibration.
| serial number | name | unit | data | ||||||
| 1 | nominal voltage | KV | 12 | ||||||
| 2 | rated frequency | Hz | 50 | ||||||
| 3 | Rated insulation level | Voltage withstand 1min power frequency | kA | max/alternate with 42/48 | |||||
| Lightning shock voltage (peak) | kA | max/alternate with 75/85 | |||||||
| 4 | Rated short circuit breaking current | kA | 20 | 25 | 31.5 | 40 | |||
| 5 | rated current | A | 630 | 630 | 1250 | 1600 | 1250 | 1600 | |
| A | 1250 | 1250 | 2000 | 2500 | 2000 | 2500 | |||
| Rated short-time tolerable current (effective value) | kA | 20 | 25 | 31.5 | 40 | ||||
| 7 | Rated peak tolerable current (peak) | kA | 50 | 63 | 80 | 100 | |||
| 8 | Rated short circuit closing current (peak) | 50 | 63 | 80 | 100 | ||||
| 9 | Rated short circuit current duration | S | 4 | ||||||
| 10 | mechanical life | next | 20000 | ||||||
| 11 | Power frequency withstand voltage of secondary circuit (1min) | V | 2000 | ||||||
| 12 | Rated sequence of operation | minute -1- Or points -t1- Or points | |||||||
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