| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, widely celebrated as the 'circuit breaker.' This pinnacle of outdoor distribution switchgear is crafted for excellence with a rated voltage of 12kV and a robust three-phase AC of 50Hz. Elegantly versatile, this circuit breaker adeptly manages the interruption and connection of load current, overload current, and short circuit current within the power grid. It excels with cutting-edge overload and short circuit protective capabilities, flawlessly addressing control and measurement demands while offering advanced remote control and monitoring features. Its extensive use across substations, industrial zones, and mining enterprise distribution systems ensures unmatched control and operation, making it the ideal choice for environments demanding frequent and reliable operations.
Structural features:
Meticulously crafted with precision, the circuit breaker proudly showcases a three-phase pillar dry design;
Expertly engineered with a fully enclosed structure, it provides exceptional sealing, remarkable moisture resistance, and superior anti-condensation properties, rendering it an impeccable selection for high-temperature and humid regions;
Harnesses state-of-the-art vacuum arc extinguishing technology, promising unparalleled insulation reliability;
Ensures flawless opening and closing performance, offering supreme safety with absolutely no risk of combustion or explosion;
Remarkably compact and lightweight, it demands no maintenance and guarantees an exceptional lifespan;
Exhibits remarkable versatility with manual, electric, or remote control operational options at your disposal;
The operating mechanism is meticulously sealed at the base of the switch box, masterfully shielding it against outdoor environmental corrosion;
Features a novel, simplistic design with a restless mechanism that ensures reliable dynamic performance, compact elegance, 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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