| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, fondly referred to as the 'circuit breaker.' This remarkable piece of outdoor distribution switchgear is adeptly designed to function at a 12kV rated voltage, operating with a substantial three-phase AC at 50Hz. It is a multifunctional circuit breaker proficiently handling the interruption and connection of load current, overload current, and short circuit current within the power grid. The circuit breaker is equipped with cutting-edge overload and short circuit protective features, effortlessly meeting control and measurement demands. Moreover, it offers state-of-the-art remote control and monitoring capabilities. Widely utilized in substations, industrial settings, and mining enterprise distribution systems, it provides unmatched control and operation, making it ideal for high-frequency operation environments.
Structural features:
Expertly crafted, this circuit breaker showcases a refined three-phase pillar dry design;
Featuring a meticulously engineered fully enclosed structure, it offers unparalleled sealing, exceptional moisture resistance, and superior anti-condensation properties, rendering it the perfect solution for high-temperature and humid climates;
Incorporates cutting-edge vacuum arc extinguishing technology, ensuring stellar insulation reliability;
Exhibits exceptional opening and closing performance, guaranteeing safety with zero risk of combustion or explosion;
Compact and lightweight, it is maintenance-free and guarantees a remarkable lifespan;
Offers versatile operation modes, including manual, electric, or remote control, catering to diverse needs;
The operating mechanism is scrupulously sealed at the base of the switch box, providing robust protection against outdoor environmental corrosion;
Boasts a novel, minimalist design with an innovative, stable mechanism that assures reliable dynamic performance, compactness, and an extraordinary 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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