| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Behold the ZW32-12, an outdoor high voltage vacuum circuit breaker, lovingly dubbed the 'circuit breaker'—a paragon of outdoor distribution switchgear excellence. Designed for a rated voltage of 12kV, it boasts a formidable three-phase AC operating at 50Hz. This multifaceted circuit breaker adeptly manages the interruption and reconnection of load currents, overload currents, and short-circuit currents across the power grid. With cutting-edge overload and short circuit protective capabilities, it flawlessly meets control and measurement demands while offering refined remote control and monitoring features. Its extensive application graces substations, industrial landscapes, and mining enterprises, delivering unrivaled control and operation—perfectly suited for frequent operation settings.
Structural features:
With precision craftsmanship, this circuit breaker presents a sophisticated three-phase pillar dry design;
Crafted with a fully enclosed structure, it offers unmatched sealing, superior moisture resistance, and anti-condensation features, making it the prime choice for high-temperature and humid environments;
Utilizes state-of-the-art vacuum arc extinguishing technology, ensuring exceptional insulation reliability;
Guarantees impeccable opening and closing performance, prioritizing safety with zero risk of combustion or explosion;
Compact and lightweight, it is maintenance-free and boasts a remarkable lifespan;
Operational flexibility is key—offering manual, electric, or remote control options;
The operating mechanism is carefully sealed within the base of the switch box, providing robust protection against outdoor environmental corrosion;
Proudly showcases a novel, minimalist design paired with a restless mechanism, ensuring reliable dynamic performance, a compact structure, and an impressive service life reaching 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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