| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, endearingly referred to as the 'circuit breaker'. This remarkable piece of outdoor distribution switchgear is expertly crafted to function at a rated voltage of 12kV, coupled with a powerful three-phase AC of 50Hz. Masterfully engineered to efficiently manage the interruption and reconnection of load currents, overload currents, and short circuit currents within the power grid, it elevates the standards of overload and short circuit protection. It seamlessly integrates control and measurement requirements, while providing cutting-edge remote control and monitoring capabilities. With its extensive application across substations, industrial environments, and mining enterprises, it ensures unmatched control and operational excellence, making it a quintessential solution for high-frequency operation settings.
Structural features:
Manufactured with meticulous attention to detail, the circuit breaker flaunts a three-phase pillar dry design;
Innovatively designed with a fully enclosed structure, it excels in providing superior sealing, unrivaled moisture resistance, and exceptional anti-condensation attributes, making it the optimal choice for high-temperature and humid areas;
Incorporates cutting-edge vacuum arc extinguishing technology to guarantee outstanding insulation reliability;
Achieves impeccable opening and closing performance, ensuring safety with zero risks of combustion or explosion;
Boasts a compact design, is lightweight, requires no maintenance, and ensures a remarkable lifespan;
Offers flexibility with operation modes-manuall, electric, or remote control at your convenience;
The operating mechanism is skillfully sealed at the base of the switch box, effectively protecting it from environmental corrosion;
Presents an innovative, minimalist design with a steadfast mechanism that promises reliable dynamic performance, compactness, and an extraordinary service life extending 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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