| Customization: | Available |
|---|---|
| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Electric Type |
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Outdoor AC vacuum circuit breaker is used to make and break load current, overload current and short-circuit current in 12/24kV,50/60Hz power system. It is applicable for substations, industry and mining, urban and rural electricity power networks, especially for occasions with frequent operation and automatic power distribution network.
Altitude:<2000mm;
Ambient temperature:-40C~+45C
Wind speed: 34m/s;
Earthquake intensity:<8 degree;
Ambient pollution: IV:
Ice thickNess:10mm;
Applicable occasions should be free from inflammables, explosives,corrosives and severe vibrations.
The circuit breaker adopts three-phase pillar structure
Operating mechanism adopts miniaturized spring operating mechanism
The circuit breaker can be equipped with a two-phase or three-phase current transformer
| Name | Unit | Data | ||
| 12kV | ||||
| Rated voltage | kV | 12 | ||
| Rated current | A | 630,1250 | ||
| Rated insulating level | 1min. PF withstand voltage | dry | kV | 42(across open contacts:48) |
| wet | 34 | |||
| Lightning impulse withstand voltage(peak) | kV | 75(across open contacts:85) | ||
| Rated short-circuit breaking current | kA | 20,25 | ||
| Rated short-circuit making current (peak) | kA | 50,63 | ||
| Rated peak withstand current | kA | 50,63 | ||
| 4s rated short-time withstand current | kA | 20,25 | ||
| Rated operating sequence | O-0.3s-CO-180s-CO | |||
| Breaking times of rated short-circuit breaking current | times | 30 | ||
| Mechanical duration | times | 10000 | ||
| Rated voltage of energy storage motor | V | DC or AC220,DC110,48,24 | ||
| Rated operation voltage | V | DC or AC220,DC110,48,24 | ||
| Abrasions thickNess of contacts | mm | 3 | ||
| Rated current of over-current release | A | 5 | ||
| Current transformer ratio | 200/5.400/5.600/5 (Protection degree: III class, Class:0.5) |
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