ZW10-12 outdoor high voltage vacuum circuit breaker
1.vacuum circuit breaker
2. IEC standard
3.Reliable Long service life,
4.Short delivery time
5.high quality ,low price
ZW10-12 outdoor high voltage vacuum circuit breaker is a type of three phase alternating switch. They are mainly used in 12kv, 630A,50HZ current system of rural grid, urban grid, mine, railway, port. They are especially appropriate to outdoor overhead network, switching over and protecting power grid by breaking and closing loading current, overload current and circuit breaking current.
Ambient condition
1 Ambient temperature: max +40°C min –40°C
2 Altitude: ≤250m
3.Wind pressure: ≤700Pa(equals to wind speed 34m/s)
4 Relative humidity: daily average relative humidity: ≤95%; monthly average relative humidity≤90%
5 Air contamination degree: III degree, far away from corrosive and combustible gas
6 No frequent violent vibration
7 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
Assembled isolator (Obvious fracture)
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 | 1000 | 1250 |
| 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 | m | 3 | ||
| Rated operating voltage of opening and closing coil(CT23 spring operating structure) | v | AC,DC220 | ||
| Rated working current of overcurrent and tripping coil | A | 5 | ||
| Current transformer current ratio of two times(normal) | 200/5,400/5,630/5, 1000/5,1250/5 | |||
| Rated voltage of energy saving motor | v | AC,DC220 | ||
| Power of energy saving motor | w | ≤70 | ||
| Weight | kg | 150 | ||
| Note:Rated characteristics can be given on requirment | ||||
