| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Behold the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, the ultimate innovation for the modern outdoor distribution networks. Familiarly dubbed the 'circuit breaker,' this pioneering switchgear is meticulously designed for a 12kV rated voltage, operating seamlessly within a robust three-phase AC at 50Hz. This versatile circuit breaker excels in efficiently handling the disconnection and reconnection of load current, overload current, and short circuit current within power grids. It showcases state-of-the-art overload and short circuit protective features, effortlessly fulfilling control and measurement demands while providing advanced remote control and monitoring functionalities. Its vast application scope encompasses substations, industrial sectors, and mining enterprise distribution systems, positioning it as the premier solution for environments demanding frequent operations, guaranteeing unparalleled control and performance excellence.
Structural Features:
With precision in every detail, the circuit breaker boasts a sophisticated three-phase pillar dry design;
Skillfully engineered with a fully enclosed structure, it offers superior sealing, remarkable moisture resistance, and anti-condensation properties, perfect for high-temperature and humid settings;
Incorporates cutting-edge vacuum arc extinguishing technology, delivering outstanding insulation reliability;
Assures flawless opening and closing performance, ensuring maximum safety without any risk of combustion or explosion;
Crafted to be compact and lightweight, it is maintenance-free with an extraordinary lifespan;
Equipped with versatile operation modes, providing manual, electric, or remote control options;
The operating mechanism is securely sealed at the base of the switch box, offering robust protection against outdoor environmental corrosion;
Exhibits a groundbreaking and minimalist design featuring an innovative mechanism, ensuring reliable dynamic performance, a compact structure, 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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