ZW8-12/630-20 Outdoor High Voltage Vacuum Circuit Breaker

Product Description

Specification
ZW8-12 adopt vacuum interrupter, air insulation, equipped electric spring mechanism to operate, all this made the product has high arc extinction ability, high short-time breaking times, no fire explosion danger, easy operate. It is a good performance and practicable product.
ZW8-12 breaker main structure adopt three-phase together box type, casing pipe inlet and outlet line, and in the box it is dry air. Electric spring mechanism located in the side of the box, it can be used under most serious circumstance.
ZW8-12 breakers vacuum interrupter use ceramic package, cup shape and longitudinal magnetic field contactor structure. So it has high ability to cut-off and short-circuit making capacity.
ZW8-12 has small volume, light weight, beautiful outlook. Vacuum interrupter and insulation supporting casing pipes compact design, outlet line conducting rod outside-feeding silicone rubber, it can be used under serious weather conditions and pollution environment.
Usage
Rated voltage 12kV ZW8-12 series vacuum circuit breaker three-phase AC 50/60Hz outdoor high voltage switch equipment, mainly used for breaking closing rural network, city network and small-scale power system load current of 10Kv, overload current, short circuit current. Also, it can used for rural power network and small power systems branch switch, it is the update product of urban and rural power network without oil.
Ambient condition
1.Altitude: not more than 2000m, the plateau is not higher than 4000m
2.Environment: -30 °C ~40 °C, -50 °C low temperature type circuit breaker limit
3.Relative humidity: daily average value not more than 2.2kpa, on average less than 1.8 kpa
4.Earthquake intensity: less than 8
5.Can according to user requirements increase electric anti jump
6.Wind: ≤ 700Pa (equivalent to the wind speed 34m/s)
7.Air pollution level: common grade III, special grade
8.Available in more than GB/T11022-1999 specified above normal environmentalconditions, the user can be resolved in consultation with the manufacturer
Model implication
Z W  8     12 / 630     20
                                                 
                                                 Short-circuit breaking circuit(kA)
                                                 
                                                 Rated current(A)
                                                
                                                 Rated voltage(kV)
                                                 
                                                 Design NO.
                                                 
                                                 Outdoor
                                                 
                                                 Vacuum
Technical specification