Customization: | Available |
---|---|
Type: | High-voltage |
Structure: | Three-column Disconnector |
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, affectionately known as the 'circuit breaker.' This exceptional piece of outdoor distribution switchgear is meticulously engineered to function seamlessly at a rated voltage of 12kV, supported by a robust three-phase AC of 50Hz. This versatile circuit breaker excels in the art of handling interruptions and connections of load current, overload current, and short circuit current within the power grid with remarkable precision. It is lauded for its advanced overload and short circuit protective capabilities, effortlessly meeting control and measurement specifications while providing sophisticated remote control and monitoring functionalities. Its extensive applications span substations, industrial settings, and mining enterprise distribution systems, offering unparalleled control and operation, making it an ideal solution for environments with frequent operations.
Structural Features:
Expertly crafted with precision, this circuit breaker showcases a three-phase pillar dry design that stands as a testament to its superior engineering.
Meticulously engineered with a fully enclosed structure, this circuit breaker offers superior sealing, exceptional moisture resistance, and anti-condensation properties, making it an ideal choice for high-temperature and humid regions.
Employs state-of-the-art vacuum arc extinguishing technology, ensuring outstanding insulation reliability for optimal performance.
Delivers flawless opening and closing performance, providing unmatched safety with no risk of combustion or explosion.
This circuit breaker is compact, lightweight, and maintenance-free, promising a remarkably long operational lifespan.
Offers versatility in operation with manual, electric, or remote control options available to suit all operational needs.
The operating mechanism is meticulously sealed at the base of the switch box, ensuring effective protection against outdoor environmental corrosion.
Features a novel, simplistic design with a restless mechanism that ensures reliable dynamic performance, a compact form factor, and an impressive 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 |