| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, endearingly termed the 'circuit breaker'—a paragon of outdoor distribution switchgear. Engineered to operate at a formidable rated voltage of 12kV, this three-phase AC marvel functions efficiently at 50Hz. This adaptable circuit breaker excels in managing the interruption and connection of load current, overload current, and short circuit current within the power grid. It is enriched with top-tier overload and short circuit protective capabilities, effortlessly executing control and measurement requisites while offering sophisticated remote control and monitoring prowess. Ideally suited for substations, industrial environments, and mining enterprise distribution systems, it provides unmatched control and seamless operation-perfectly attuned to settings characterized by frequent operations.
Structural features:
Expertly crafted, the circuit breaker flaunts a refined three-phase pillar dry design;
With a meticulously engineered fully enclosed structure, it delivers superior sealing, exceptional resistance to moisture, and outstanding anti-condensation properties, making it an ideal candidate for high-temperature and humid regions;
Incorporates pioneering vacuum arc extinguishing technology, ensuring unparalleled insulation reliability;
Ensures flawless opening and closing performance, enhancing safety with a guarantee of zero combustion or explosion risk;
Compact and lightweight, it requires no maintenance and promises an extraordinary lifespan;
Boasts operational versatility with manual, electric, or remote control options readily available;
The operating mechanism is carefully sealed at the base of the switch box, providing exceptional protection against environmental corrosion and ensuring outdoor resilience;
Features an innovative, minimalist design with a restless mechanism that guarantees dependable dynamic performance, a compact form, and an astounding service life extending 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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