| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, lovingly referred to as the 'circuit breaker.' This distinguished outdoor distribution switchgear is engineered to perfection to operate at a rated voltage of 12kV, supported by a resilient three-phase AC of 50Hz. Masterfully crafted, this dynamic circuit breaker excels in managing the interruption and connection of load currents, overload currents, and short circuit currents within the power grid. It is adorned with cutting-edge overload and short circuit protective capabilities, adeptly meeting control and measurement requisites while providing sophisticated remote control and monitoring capabilities. With its extensive applicability across substations, industrial environments, and mining enterprise distribution systems, it offers unrivaled control and operational excellence, especially in settings demanding frequent operations.
Structural features:
Impeccably crafted, the circuit breaker flaunts a three-phase pillar dry design;
Meticulously engineered with a fully enclosed structure, it offers outstanding sealing, remarkable moisture resistance, and anti-condensation attributes, making it the ideal selection for high-temperature and humid locales;
Incorporates cutting-edge vacuum arc extinguishing technology that guarantees exceptional insulation reliability;
Exhibits impeccable opening and closing performance, ensuring utmost safety with zero risk of combustion or explosion;
Elegantly compact and lightweight, it requires no maintenance and promises an extensive lifespan;
Offers operational adaptability with manual, electric, or remote control options at your fingertips;
The operating mechanism is expertly sealed at the base of the switch box, providing robust protection against outdoor environmental corrosion;
Features an innovative, minimalist design with a vigorous mechanism that ensures reliable dynamic performance, a compact structure, and an extraordinary service life reaching 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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