| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12, our remarkable outdoor high voltage vacuum circuit breaker affectionately known as the 'circuit breaker'. This state-of-the-art outdoor distribution switchgear is engineered to perform at a rated voltage of 12kV with a powerful three-phase AC of 50Hz. Designed to masterfully interrupt and connect load current, overload current, and short circuit current within the power grid, it stands at the forefront of protective capabilities. With advanced overload and short circuit protection, it effortlessly meets control and measurement demands while offering sophisticated remote control and monitoring. Ideal for use in substations, industrial settings, and mining enterprise distribution systems, this circuit breaker is perfect for environments requiring frequent operations, providing unparalleled control and operation.
Structural features:
Meticulously crafted, the circuit breaker features an innovative three-phase pillar dry design;
Expertly engineered with a fully enclosed structure, it ensures superior sealing with remarkable moisture resistance and anti-condensation properties—making it the ideal choice for high-temperature and humid regions;
Incorporates cutting-edge vacuum arc extinguishing technology, guaranteeing exceptional insulation reliability;
Offers flawless opening and closing performance, providing utmost safety without the risk of combustion or explosion;
Designed to be compact, lightweight, and maintenance-free, boasting a remarkable lifespan;
Offers versatile operation with manual, electric, or remote control options at your fingertips;
The operating mechanism is carefully sealed at the switch box base, providing effective protection against environmental corrosion;
Showcases an innovative, minimalist design with a dynamic mechanism ensuring reliability, compactness, 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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