| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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The ZW32-12 outdoor high voltage vacuum circuit breaker, affectionately dubbed the 'circuit breaker,' stands as a remarkable outdoor distribution switchgear conceived for a rated voltage of 12kV, with a potent three-phase AC of 50Hz. This adaptable circuit breaker adeptly manages the interruption and reconnection of load current, overload current, and short circuit current within the power grid, showcasing advanced protective capabilities. It seamlessly meets control and measurement standards while offering sophisticated remote control and monitoring features. Widely utilized across substations, industrial environments, and mining enterprise distribution systems, it provides unrivaled control and operation—perfect for settings requiring frequent use.
Structural features:
Meticulously crafted with precision, the circuit breaker unveils a three-phase pillar dry design;
Engineered with an impeccably closed structure, it guarantees superior sealing, exceptional moisture resistance, and anti-condensation properties, making it the go-to choice for high-temperature and humid regions;
Incorporates cutting-edge vacuum arc extinguishing technology to ensure exceptional insulation reliability;
Exhibits flawless opening and closing performance, maintaining safety with zero risk of combustion or explosion;
Compact and lightweight, it requires no maintenance and promises an impressive lifespan;
Offers operational versatility with manual, electric, or remote control options at your convenience;
The operating mechanism is expertly sealed at the base of the switch box, providing robust protection against outdoor environmental corrosion;
Features an innovative, simplistic design with a dynamic mechanism that guarantees reliable 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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