| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, affectionately known as the 'circuit breaker'—a paragon of modern outdoor distribution switchgear. Designed to excel at a rated voltage of 12kV, this powerhouse operates with a robust three-phase AC of 50Hz. Its versatility is unmatched, deftly managing the interruption and reconnection of load current, overload current, and short circuit current within the power grid. This advanced circuit breaker is equipped with pioneering overload and short circuit protective features, seamlessly meeting control and measurement needs while offering advanced remote control and monitoring capabilities. Its extensive applications range from substations and industrial environments to mining enterprise distribution systems, delivering exemplary control and operation—ideal for settings with frequent operational demands.
Structural Features:
Crafted with meticulous precision, the circuit breaker boasts a three-phase pillar dry design;
With its fully enclosed structure, it provides unparalleled sealing, combined with exceptional moisture resistance and anti-condensation qualities, perfect for high-temperature, humid regions;
Employs cutting-edge vacuum arc extinguishing technology, ensuring pinnacle insulation reliability;
Offers impeccable opening and closing performance, ensuring safety without any risk of combustion or explosion;
Remarkably compact and lightweight, it is maintenance-free and promises a remarkable lifespan;
Presents operational versatility with manual, electric, or remote control options available;
The operating mechanism is intricately sealed at the base of the switch box, providing steadfast protection from outdoor environmental corrosion;
Exhibits a novel, minimalist design featuring a restless mechanism that guarantees reliable dynamic performance, a compact form, and an impressive service life of up to 10,000 cycles.
Main Technical Parameters:
|
No |
Name |
Unit |
Data |
|||
|
1 |
Rated voltage |
kV |
12 |
|||
|
2 |
Rated current |
A |
630 |
1250 |
||
|
3 |
Rated frequency |
Hz |
50 |
|||
|
4 |
Rated insulation level |
1min power frequency withstand voltage |
Dry test |
/ |
42/48(fracture) |
|
|
Wet test |
34 |
|||||
|
Secondary circuit to ground |
2 |
|||||
|
Lightning impulse withstand voltage (peak value) |
75/85(fracture) |
|||||
|
5 |
Rated short circuit making current (peak value) |
kA |
50 |
63 |
||
|
6 |
Rated short time withstand current |
kA |
20 |
25 |
||
|
7 |
Rated peak withstand current |
kA |
50 |
63 |
||
|
8 |
Breaking times of rated short circuit breaking current |
Times |
30 |
|||
|
9 |
Rated short circuit duration |
s |
4 |
|||
|
10 |
Rated operating voltage and rated voltage of auxiliary circuit |
V |
DC220,AC220 ,AC/DC220 |
|||
|
11 |
Rated operation sequence |
/ |
Off-0.3s-on-off-180s-on-off |
|||
|
12 |
Rated current of over current trip |
A |
5 |
|||
|
13 |
Mechanical life |
second |
10000 |
|||
|
14 |
Allowable wear accumulative thickness of moving and static contacts |
mm |
3 |
|||
|
15 |
Rated current of over current release |
A |
5 |
|||
|
16 |
Current ratio of current transformer |
/ |
200/5 400/5 600/5 |
|||
|
17 |
Contact opening distance |
mm |
9±1 |
|||
|
18 |
Contact overtravel |
mm |
2±0.5 |
|||
|
19 |
Average opening speed |
m/s |
1.2±0.3 |
|||
|
20 |
Average closing speed |
m/s |
0.6±0.2 |
|||
|
21 |
Opening time |
ms |
≤40 |
|||
|
22 |
Closing time |
ms |
20~45 |
|||
|
23 |
Closing bounce time |
ms |
≤2 |
|||
|
24 |
Asynchrony of three phase closing and opening |
mm |
≤2 |
|||
|
25 |
Three phase circuit resistance |
μΩ |
≤80 Band isolation≤120 |
|||
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