| 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 in12kV, 50/60Hz power system. It is applicable for substations, industry and mining, urban and rural electricity power networks, especially applicable in occasions with frequent operation and automatic power distribution network.
Altitude:≤2000mm;
Ambient temperature: -40ºC~+45C;
Earthquake intensity:8degree;
Ice thickNess:10mm;
Wind speed: 34m/s (air pressure 700Pa).
Manual brake opening device
Epoxy resin package
No maintenance, the application of bistable permanent magnet technology
The switch housing is made of stainless steel or sprayed plastic
| Name | Unit | Data | ||
| Rated voltage | kV | |||
| Rated insulating level | 1min P.F withstand voltage-(phase to phase, to earth; across open contacts) | dry | 42/48 | |
| wet | 34 | |||
| Lightning impulse withstand voltage peak (phase to phase, to earth;) | 75 | |||
| Lightning impulse withstand voltage peak ( across open contacts ) | 85 | |||
| Rated frequency | Hz | 50 | ||
| Rated current | A | 630,1250 | ||
| Rated short-time withstand current | kA/4S | 20,25 | ||
| Rated short-circuit breaking current | kA | 20,25 | ||
| Rated short-circuit making current | 50,63 | |||
| Rated peak withstand current(peak) | 50,63 | |||
| Rated operating sequence | / | O-0.3s-CO-180s-CO | ||
| Breaking time of rated short-circuit breaking current | times | 30 | ||
| Mechanical duration | Permanent magnet mechanism 30000, spring mechanism 10000 | |||
| Abrasions thickNess of contacts | mm | 3 | ||
| Net weight | kt | 70 | ||
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