ZW8-12/630-20 outdoor high voltage vacuum circuit breaker
The main technical parameters
| Rated voltage | 12kV |
| Rated current | 630A |
| Power frequency withstand voltage | 42kV/48kV |
| Lightning impulse withstand voltage (peak value) | 75kV/85kV |
| Rated short-circuit breaking current (effective value) | 20kA |
| Rated short-circuit making current (peak value) | 50kA |
| Rated operating sequence | Points-0.3S combined points-180S combined points |
| Rated short-circuit current breaking times | 30 times |
| Mechanical life | 10000 times |
| Rated operating voltage (closing/opening coil) | DC220V AC220V |
| Allowable wear thickness of moving and static contacts | 3mm |
| Allowable wear thickness of moving and static contacts | >200mm |
product information
Product name: ZW8-12/630-20 outdoor high voltage vacuum circuit
breaker
Category: high voltage components
Product introduction: The use of vacuum interrupter, air
insulation, and electric spring operating mechanism make the
product have strong arc extinguishing ability, high short-circuit
breaking times, no fire and explosion hazard, convenient operation,
excellent performance and strong practicability The product.
Overview of ZW8-12/630-20 outdoor high voltage vacuum circuit
breaker
Employing a vacuum interrupter, air insulation, and an electric
spring operating mechanism, the product has strong arc
extinguishing capability, high short-circuit breaking times, no
fire and explosion hazard, and convenient operation. It is a
product with excellent performance and strong practicability.
The overall structure of this product adopts a three-phase common
box type, with casing in and out of the line, dry air in the box,
and an electric spring restless mechanism arranged on the side of
the box, which can be used reliably under severe environmental
conditions.
The vacuum arc extinguishing of this product adopts a ceramic
shell, a cup-shaped longitudinal magnetic field contact structure,
and a copper contact contact material, which has excellent
short-circuit current capability of opening and closing.
The product is small in size, light in weight, and beautiful in
appearance. The main technical parameterscompact in design, and the
outlet conductive rod is filled with silicone rubber, which can
adapt to harsh weather conditions and dirty environments.
Application of ZW8-12/630-20 outdoor high voltage vacuum circuit
breaker
The ZW8-12/630-20 outdoor high voltage vacuum circuit breaker is an
AC 50Hz three-phase power system, which is mainly used to break and
close the 10KV load current, no-load current and short-circuit
current of the urban and urban areas. It can also be used in rural
areas. The sub-switches of power grids and small power systems are
the updated products of the area network and the oil-free
agricultural industry.
