Product Description
ZW8-12 High Voltage Outdoor Vacuum Circuit Breaker
Production View
---ZW8-12 series adopts vacuum arc extinguishing chamber, air insulation and electric spring operating mechanism, which makes the product have strong arc extinguishing ability, high short-circuit breaking times, no fire and explosion hazard and convenient operation. It is a kind of product with excellent performance. Practical products.
---The overall structure of this product adopts three-phase common box type, with casing inlet and outlet lines. The box body is dry coal air. The electric spring operating mechanism is arranged on the side of the box, which can be used reliably under severe environmental conditions.
---The vacuum interrupter of this product adopts ceramic shell, cup-shaped longitudinal magnetic field contact structure and copper chromium contact material, which has excellent ability of breaking and closing short-circuit current.
---The product has the advantages of small volume, light weight and beautiful appearance. The vacuum interrupter and insulating support sleeve are compact in design, and the outgoing conductive rod is injected with silicone rubber, which can adapt to harsh weather conditions and dirty environment.
Use Environment
ZW8-12 / 630-25 outdoor high voltage vacuum circuit breaker is an AC 50h three-phase power system.
---It is mainly used to turn off and turn on the load current, no-load current and short-circuit current of 10kV power grid in urban areas.
---It can also be used as the sub switch of rural power grid and small power system.
---It is an oil-free replacement product of urban and rural power grid.
Main Techenical Parameters
| Item |
Parameter |
Item |
Parameter |
| Rated voltage |
12kV |
Rated operating sequence |
open-0.3sclose open-180s close open |
| Rated current |
630A |
Rated short-circuit current breaking times |
30 times |
| power-frequency withstand voltage |
42kV/48kV |
Mechanical life |
10000 times |
| lightning impluse withstand voltage(peak) |
75kV/85kV |
Rated operating voltage(closing/opening coil) |
DC220V AC220V |
| Rated short-circuit breaking current(effective value) |
25kV |
Allowable wear thickness of moving and stationary contacts |
3mm |
| Rated short-circuit making current(peak) |
50kV |
Disconnection distance of isolation fracture |
>200mm |
Workshop Image
Workshop Image
Company Profile
Company Profile
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