| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12, a remarkable outdoor high voltage vacuum circuit breaker. Lovingly referred to as the 'circuit breaker,' this state-of-the-art outdoor distribution switchgear is expertly designed to function at a rated voltage of 12kV, backed by a powerful three-phase AC system at 50Hz. This remarkable circuit breaker effortlessly manages the interruption and reconnection of load currents, accommodates both overload and short circuit currents, and provides exceptional protective measures. It seamlessly integrates control and measurement functions, while also offering advanced remote control and monitoring capabilities. Widely utilized across substations, industrial landscapes, and the mining sector, this circuit breaker excels in delivering superior control and operation, making it an ideal choice for environments requiring frequent operational demands.
Structural features:
Meticulously crafted, the circuit breaker boasts an innovative three-phase pillar dry design;
Designed with a fully enclosed structure, it offers unmatched sealing, remarkable moisture resistance, and anti-condensation properties, making it the optimal solution for high-temperature and humid environments;
Incorporates cutting-edge vacuum arc extinguishing technology, ensuring exceptional insulation reliability;
Provides impeccable opening and closing operations, ensuring utmost safety without the risk of combustion or explosion;
This compact and lightweight device requires no maintenance and promises a long-lasting lifespan;
Boasts versatile operation modes with options for manual, electric, or remote control usage;
The operating mechanism is securely sealed at the switch box base, providing excellent protection against outdoor environmental corrosion;
Features a pioneering, simplistic design with a dynamic, resilient mechanism that ensures reliable performance, all within a compact form factor, and an outstanding 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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