| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12, a groundbreaking outdoor high voltage vacuum circuit breaker cherished in the industry as the 'circuit breaker.' This state-of-the-art outdoor distribution switchgear is expertly crafted to perform at a rated voltage of 12kV and an impressive three-phase AC frequency of 50Hz. This multifunctional circuit breaker adeptly manages the interruption and reconnection of load, overload, and short circuit currents within the power grid. It is equipped with cutting-edge overload and short circuit protection features, fulfilling stringent control and measurement standards while offering advanced remote control and monitoring capabilities. Favored in substations, industrial, and mining enterprise distribution systems, it provides unrivaled control and operational efficiency, making it an ideal solution for environments requiring frequent operations.
Structural features:
Designed with precision, this circuit breaker boasts an innovative three-phase pillar dry configuration;
Constructed with a fully enclosed design, it ensures optimal sealing with remarkable moisture resistance and anti-condensation characteristics, making it the product of choice for high-temperature and humid climates;
Utilizes cutting-edge vacuum arc extinguishing technology, delivering exceptional insulation reliability;
Offers flawless opening and closing operations, providing complete safety with zero risk of combustion or explosion;
Compact and lightweight, this product requires no maintenance and guarantees a remarkable operational lifespan;
Offers versatility with manual, electric, or remote control operation options;
The operating mechanism is expertly sealed at the base of the switch box, ensuring protection against environmental corrosion;
Features an innovative, simplistic design with a resilient mechanism to ensure dependable dynamic performance, compact build, and an extraordinary 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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