| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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The ZW32-12 outdoor high voltage vacuum circuit breaker, endearingly termed as the 'circuit breaker,' exemplifies an outstanding outdoor distribution switchgear, engineered to function at an optimal rated voltage of 12kV with a formidable three-phase AC of 50Hz. This adaptable circuit breaker adeptly manages the interruption and connection of load current, overload current, and short circuit current within the power grid, showcasing advanced overload and short circuit protective features. It flawlessly meets control and measurement requirements while offering sophisticated remote control and monitoring capabilities. Its extensive application spans substations, industrial environments, and mining enterprise distribution systems, providing unmatched control and operational efficiency—ideal for locales demanding frequent operations and reliability.
Structural features:
Meticulously crafted, the circuit breaker exhibits a three-phase pillar dry design, demonstrating unparalleled engineering precision;
Expertly engineered with a fully enclosed structure, it provides superior sealing, remarkable moisture resistance, and robust anti-condensation properties, making it the quintessential choice for high-temperature and humid regions;
Incorporates cutting-edge vacuum arc extinguishing technology, ensuring exceptional insulation reliability;
Offers impeccable opening and closing performance, guaranteeing safety with zero risk of combustion or explosion;
Compact and lightweight, demands no maintenance, and assures an extraordinary lifespan;
Versatile in operation—accommodates manual, electric, or remote control options;
The operating mechanism is carefully sealed at the base of the switch box, providing robust protection against outdoor environmental corrosion;
Presents a novel, minimalist design with a restless mechanism that guarantees reliable dynamic performance, a compact form factor, and an incredible 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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