| 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 cur rent 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. It accords with the standard of IEC622 71-100 & GB1984: AC high voltage circuit breaker, IEC60694 & GB/T11022:HV General technical requirement of switch and control apparatus.
Altitude:<2000mm;
Ambient temperature:-40C~+45ºC
Wind speed: 34m/s;
Earthquake intensity:<8degree;
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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