ZW8-12(G) outdoor high voltage vacuum circuit breaker
1.vacuum circuit breaker with IEC standard
2.Rated voltage 12 KV
3.Rated short-circuit breaking current 12.5/16/20 kA
ZW8-12(G)series assembled circuit breaker is kind of 12kv,50Hz three phase current high voltage outdoor switch device consist of ZW8-12 circuit breaker and isolator. They are mainly used for breaking loading current, over load current, fault current in rural or urban power grid and small-scare power system and also used as segment switch. Vacuum interrupter is in the metal case, taking advantage of SMC insulate material to realize phase insulation and ground insulation.
Operation structure of this circuit breaker is CT23 spring energy saving operation structure, which can be dividing into motor and manual.
Ambient condition
1 Ambient temperature: max +40°C min –40°C
2 Altitude: ≤2000m
3.Wind pressure: ≤700Pa(equals to wind speed 34m/s)
3 Relative humidity: daily average relative humidity: ≤95%; monthly average relative humidity≤90%
4 Air contamination degree: III degree, far away from corrosive and combustible gas
5 No frequent violent vibration
6 Silicon rubber which is used as isolate medium should meet the appliance field requirement of GB655386.
Order instruction
Complete model and order quantity of the product
Rated current, rated voltage, rated breaking current
Transform ratio of assembled current mutual inductor
Operation pattern (electrical or manual)
Operation voltage
Application place
Other requirement please contact with us directly
| Main Technical Data | ||||
| Rated voltage | kv | 12 | ||
| Rated frequency | Hz | 50 | ||
| Rated lighting impulse withstand voltage | kv | Interphase or to ground 75,fructure 80 | ||
| Rated short-time power frequency withstand voltage | kv | Interphase or to ground 42,fructure 48 | ||
| Rated current | A | 630 | ||
| Rated short-circuit breaking current | kA | 12.5 | 16 | 20 |
| Rated short-circuit making current | kA | 31.5 | 40 | 50 |
| Rated short-time withstand current | kA | 12.5 | 16 | 20 |
| Rated peak withstand current | kA | 31.5 | 40 | 50 |
| Rated operations of short-circuit breaking current interruption | times | 30 | ||
| Rated operating sequence | 0-0.3-CO-180s -CO | |||
| Mechanical life | times | 10000 | ||
| Contact erosion limit | mm | 3 | ||
| Rated operating voltage of opening and closing coil(CT23 spring operating structure) | v | AC,DC220 AC,DC110 | ||
| Rated working current of overcurrent and tripping coil | A | 5 | ||
| Rated voltage of energy saving motor | v | AC,DC220 AC,DC110 | ||
| Power of energy saving motor | w | ≤200 | ||
| Weight | kg | 150 | ||
| Note:Rated characteristics can be given on requirment | ||||
