| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
Still deciding? Get samples of US$ 800/Piece
Request Sample
|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Discover the ZW32-12 outdoor high voltage vacuum circuit breaker, an esteemed member of the outdoor distribution switchgear family. This pioneering 'circuit breaker' operates magnificently at a rated voltage of 12kV, harnessing the power of a resilient three-phase AC with a frequency of 50Hz. Expertly engineered, it excels in managing the interruption and reconnection of load currents, handling overloads, and adeptly responding to short circuit currents in the power grid. With its advanced protective measures for overloads and short circuits, it effortlessly meets control and measurement requirements while offering state-of-the-art remote control and monitoring capabilities. Widely deployed across substations, industrial domains, and mining enterprise distribution systems, it offers unmatched operational control, making it an ideal choice for frequently operated environments.
Structural features:
Meticulously designed, the circuit breaker features a sophisticated three-phase pillar dry design;
With a fully enclosed structure, it excels in sealing efficiency, outstanding moisture resistance, and superb anti-condensation capabilities, making it the go-to option for high-temperature and humid regions;
Incorporates cutting-edge vacuum arc extinguishing technology, delivering extraordinary insulation reliability;
Ensures impeccable opening and closing actions, prioritizing safety with zero risk of combustion or explosion incidents;
Remarkably compact and lightweight, it demands no maintenance and promises a remarkable lifespan;
Offers operational versatility with manual, electric, or remote control options available;
The operating mechanism is expertly sealed within the base of the switch box, offering robust protection against outdoor environmental corrosion;
Proudly presents a novel design with a restless mechanism, ensuring unmatched dynamic reliability, a compact form, and an astonishing service life extending 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 |
|||
){kind=link}