Model NO.: VS! -12
HS Code: 8535210000
Product DescriptionZN63(VS1)-12 series h.v vacuum breaker is h.v indoor switch device with rated voltage 12kv,three-phase AC 50Hz,imported Swiss ABB company technology,combines domestic industry development situation and production.the whole structure of product is the form of integrated installation taking switch body as operating mechanism,adopt the combination insulation structure,no pollution,no explosion danger,high insulation lever.Operating mechanism of the type products is spring energy storage type,it can be AC or DC operated,also be operated by hand.
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The use of environmental conditions
1.Ambient temperature: not higher than +40 °C, not less than -15°C(at -30 °C to allow storage and transportation).
2. Altitude: not exceed 1000m.
3. Relative humidity: daily average of not more than 90%, month average of not more than 90%. saturated vapor pressure daily average of not more than 2.2 × 10-3MPa, month average not more than 1.8 × 10-3MPa.
4. Earthquake intensity: not more than eight.
5. No fire, explosion hazard, serious filthy, chemical corrosion, as well as places of intense vibration.
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Detailed Specifications of Indoor vacuum circuit breaker
| Item | Unit | Data | |||
| Rated voltage | KV | 11/12/24/33 | |||
| Rated current | A | 1250/1600/2000/2500 | 1250/1600/2500/3150 | 1250/2500/3150 | |
| Rated short circuit dropout current | KA | 31.5 | 40 | 50 | |
| Rated short circuit close current(peak) | KA | 80 | 100 | 125 | |
| Rated peak withstand current | KA | 80 | 100 | 125 | |
| 4s rated short time withstand current | KA | 31.5 | 40 | 50 | |
| Rated insulation level | Short time(1min)line frequency withstand voltage | KV | 42(fracture48) | ||
| Thunder impulse withstand voltage | KV | 75(fracture85) | |||
| Mechanical life | times | 10000 | |||
| Open circuit times of rated short circuit dropout current | times | 50 | |||
| Rated close brake voltage of operating mechanism(DC) | V | 110/220 | |||
| Rated break brake voltage of operating mechanism(DC) | V | 110/220 | |||
| Rated contactor pressure | N | 3000±200 | 5000±300 | 6300±300 | |
| Contactor torque | mm | 11±1 | |||
| Contactor stoke(the reduction length of contact spring) | mm | 3.5±0.5 | |||
| Different period of contactor break and close valve | ms | ≤2 | |||
| The jump time of contactor close brake | ms | ≤2 | |||
| Average break brake speed | m/s | 0.9-1.2 | |||
| Average close brake speed | m/s | 0.5-0.8 | |||
| Break brake time | Under Max operation voltage | s | ≤0.05 | ||
| Under Min operation voltage | s | ≤0.08 | |||
| Close brake time | s | ≤0.1 | |||
| Main loop resistance of each phase | μΩ | ≤50 | |||
| Allowable abrasion total thickness of active and static contactor | mm | 3 | |||
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