| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, a celebrated member of our circuit breaker family. Designed as premium outdoor distribution switchgear, it operates flawlessly at a rated voltage of 12kV and a powerful three-phase AC of 50Hz. This multifunctional marvel adeptly manages the interruption and connection of load current, overload current, and short circuit current within the power grid. With its advanced protective capabilities against overloads and short circuits, it effortlessly meets control and measurement specifications. The circuit breaker is equipped with sophisticated remote control and monitoring functionalities. It is widely employed in substations, industrial settings, and mining enterprises, offering unmatched control and operational excellence, especially in environments where frequent operations are a necessity.
Structural features:
Crafted with precision, the circuit breaker boasts a robust three-phase pillar dry design;
Engineered with a fully enclosed structure, it offers unmatched sealing, exceptional moisture resistance, and anti-condensation attributes, making it the prime choice for high-temperature and humid environments;
Employs cutting-edge vacuum arc extinguishing technology, ensuring outstanding insulation reliability;
Guarantees impeccable opening and closing performance, ensuring safety with no risk of combustion or explosion;
Compact, lightweight, maintenance-free, and promises an impressive lifespan;
Versatility in operation – choose from manual, electric, or remote control options;
The operating mechanism is meticulously sealed at the base of the switch box, providing robust protection against outdoor environmental corrosion;
Exhibits a novel, simplistic design with a restless mechanism that ensures reliable dynamic performance, a compact form, and an astounding 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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