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| Brand Name : | Dong Sheng Yuan |
| Model Number : | 10kV permanent magnet circuit breaker switch |
| Delivery Time : | T+30 |
| Payment Terms : | TT |
---Outdoor high-voltage fast permanent magnet vacuum circuit breaker is an outdoor distribution vacuum circuit breaker with a rated voltage of 12kV and three-phase AC 50Hz.
---Outdoor high-voltage vacuum circuit breaker is a new generation of outdoor column vacuum circuit breaker developed to meet the needs of the smart grid.
--- It is used to switch loads of different properties and frequent operations, and can break short-circuit current many times.
---It can be used as the 10kV side outgoing line of the main transformer of the substation and the switch on the column of the distribution network.
---It is the preferred equipment to realize the intellectual, automation, and miniaturization of the distribution network.
Item | Unit | Parameter |
Rated voltage | kV | 12 |
Rated current | A | 630/1250 |
Rated frequency | Hz | 50 |
Rated lightning impulse withstand voltage(peak) | kV | ground 75/fracture 85 |
Rated short-time power frequency withstand voltage(1min) | kV | wet test 34/ dry test 42/ fracture 48 |
Rated short-circuit breaking current | kA | 25 |
Rated short-circuit breaking current times | Times | 30 |
Rated short-time withstand current | kV | 25 |
Rated short circuit duration | s | 4 |
Rated peak withstand current | kA | 50 |
Rated short-circuit making current | kA | 50 |
Power frequency withstand voltage of secondary circuit(1min) | kV | 2 |
Rated operating sequence | O-0.3s-CO-180S-CO | |
Mechanical life | Times | 30000 |
1. Ambient air temperature: upper limit + 70 ºC, lower limit - 40 ºC
2. Air relative humidity: the daily average value shall not be greater than 95%, and the monthly average value shall not be greater than 90%;
3. Altitude: < 2000m;
4. Wind pressure: no more than 700pa (equivalent to wind speed of 34m / s)
5. Pollution level: Class V (specific creepage distance ≥ 31mm / kV)
6. Icing thickness: ≤ 10mm;
7. Seismic intensity: ≤ 8 degrees;
8. Installation site: there shall be no fire, explosion hazard, serious pollution, chemical corrosion, or violent vibration.
1. protection: it is equipped with three-stage voltage blocking directional overcurrent protection, inverse time overcurrent protection, zero sequence protection, acceleration protection, overload protection, low-frequency load shedding, low-voltage splitting, and three-phase triple reclosing;
2. Measurement: three-phase voltage, current, power factor, frequency, etc.
3. control function: automatic reclosing, local control, and remote control can be set
4. Communication function: standard RS232, RS485, or Ethernet interface, supporting optical fiber, distribution network carrier, wireless, twisted pair, and other communication modes, GPRS short message or communication, etc.
5. Other functions: local display, parameter setting, fault recording and alarm, etc.
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