| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, affectionately referred to as the 'circuit breaker.' This superb outdoor distribution switchgear is meticulously engineered to operate at a rated voltage of 12kV with a powerful three-phase AC frequency of 50Hz. Masterfully designed, this multipurpose circuit breaker adeptly manages the interruption and connection of load current, overload current, and short circuit current within the power grid. It excels with its advanced overload and short circuit protective features, effortlessly meeting control and measurement requirements while offering sophisticated remote control and monitoring functionalities. Widely utilized across substations, industrial settings, and mining enterprise distribution systems, it provides unmatched control and operation, perfectly suited for environments where frequent operations are essential.
Structural features:
Crafted with precision, the circuit breaker is distinguished by its innovative three-phase pillar dry design;
Engineered with a fully enclosed structure, this remarkable device offers superior sealing, exceptional moisture resistance, and anti-condensation properties, making it the ideal choice for high-temperature and humid regions;
Incorporates cutting-edge vacuum arc extinguishing technology to guarantee outstanding insulation reliability;
Ensures flawless opening and closing performance, eliminating any risk of combustion or explosion, and ensuring utmost safety;
Boasts a compact and lightweight design, requiring no maintenance, and is built to last with an impressive lifespan;
Offers versatile operation options, including manual, electric, or remote control, to suit diverse user needs;
The operating mechanism is meticulously sealed at the base of the switch box, providing effective protection against outdoor environmental corrosion;
Features a novel, straightforward design with a restless mechanism that ensures reliable dynamic performance, a compact form, 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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