ZW8-12(G)/T Outdoor High Voltage Ac Vacuum Circuit Breaker
Technical specification
|
No. |
Item |
Units |
Parameters |
|
|
1 |
Rated voltage |
kV |
12 |
|
|
2 |
Rated current |
A |
630 |
|
|
3 |
(1min) Power frequency withstand voltage |
kV |
42/48 |
|
|
4 |
Lightning impulse withstand voltage(peak) |
75 |
||
|
5 |
Rated short circuit breaking current |
kA |
16 20 25 |
|
|
6 |
Rated short circuit closing current |
40 50 63 |
||
|
7 |
Rated peak withstand current |
40 50 63 |
||
|
8 |
4s rated short time withstand current |
16 20 25 |
||
|
9 |
Rated operation sequence |
|
O-0.3s-CO-180s-CO |
|
|
10 |
Breaking times of rated short-circuit brealking current |
Times |
30 |
|
|
11 |
Mechanical life |
10000 |
||
|
Energy storage motor rated voltage |
V |
DC/AC220 |
||
|
12 |
Rated operation voltage with special spring operating mechanism |
Opening coil |
||
|
Closing coil |
||||
|
13 |
Over current release rated current |
A |
5 |
|
|
14 |
Dynamic and static contact allowed to abrasion thickness |
mm |
3 |
|
Product Model
Dimension
Product Functions
◆Comprehensive Current Switching: Safely breaks and closes load currents, over currents, and short-circuit currents in 12kV distribution systems.
◆Rural & Urban Network Protection: Specifically designed for rural electrification and city network applications requiring reliable circuit interruption.
◆Multiple Breaking Operations: Capable of 30 breaking operations at rated short-circuit current, ensuring longevity during fault conditions.
◆Motor-Operated Energy Storage: Features DC/AC220V energy storage motor for reliable automatic operation and closing preparation.
◆Versatile Application: Suitable for various outdoor installations beyond standard network applications.
Applicable Environment
◇Rated System: Suitable for 12kV, 50Hz three-phase AC outdoor power systems.
◇Installation Type: Designed for outdoor installation in rural and urban network environments.
◇Lightning Protection: Lightning impulse withstand voltage of 75kV protects against transient overvoltages.
◇Application Scope: Ideal for rural electric networks, city distribution systems, and similar outdoor locations.
Product Highlights
◆Dual Network Application: Specifically engineered for both rural electrification and urban network systems, providing versatile protection across diverse distribution infrastructure.
◆Robust Dielectric Performance: Features 42kV power frequency withstand and 75kV lightning impulse withstand, ensuring reliable operation under transient overvoltage conditions.
◆Proven Breaking Capacity: Rated for 30 breaking operations at rated short-circuit current, demonstrating excellent durability and long service life in fault-prone environments.
◆Flexible Power Supply: Energy storage motor accepts both DC and AC 220V power sources, simplifying integration with various control system configurations.
◆Outdoor-Ready Construction: Designed for direct outdoor installation in challenging environments including rural areas with limited access and urban locations with space constraints.
◆630A Continuous Rating: Handles 630A rated current continuously, suitable for typical distribution feeder applications in both rural and city networks.