| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the remarkable ZW32-12 outdoor high voltage vacuum circuit breaker, fondly termed the 'circuit breaker.' This exemplary piece of outdoor distribution switchgear is crafted to perfection, operating at a rated voltage of 12kV with a robust three-phase AC frequency of 50Hz. This versatile circuit breaker is adept at managing the interruption and reconnection of load current, overload current, and short circuit current within the power grid. It boasts cutting-edge overload and short circuit protective capabilities, flawlessly meeting control and measurement standards while offering advanced remote control and monitoring functionalities. Its extensive application spans substations, industrial environments, and mining enterprise distribution frameworks, delivering unmatched control and operational excellence—especially suited for areas requiring frequent operations.
Structural features:
Meticulously crafted, the circuit breaker embodies a three-phase pillar dry design with utmost precision;
Designed with a fully enclosed structure, it provides superior sealing, unparalleled moisture resistance, and anti-condensation properties, making it an ideal solution for high-temperature and humid climates;
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;
Exemplifies compactness and lightweight design, requiring no maintenance, and assures an impressive longevity;
Boasts versatile operation modes—manual, electric, or remote control options are at your disposal;
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 ensures reliable performance, a compact form factor, and a stunning 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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