Customization: | Available |
---|---|
Type: | High-voltage |
Structure: | Three-column Disconnector |
Still deciding? Get samples of $ !
Request Sample
|
Suppliers with verified business licenses
Audited by an independent third-party inspection agency
Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, the paramount solution for today's outdoor distribution networks. Affectionately known as the 'circuit breaker,' this sophisticated switchgear is brilliantly crafted for a 12kV rated voltage with a robust three-phase AC at 50Hz. This versatile circuit breaker excels in the seamless interruption and reconnection of load current, overload current, and short circuit current within power grids. It boasts state-of-the-art overload and short circuit protective capabilities, effortlessly addressing control and measurement needs while offering advanced remote control and monitoring functions. Its broad application range includes substations, industrial domains, and mining enterprise distribution systems, making it the premier choice for environments requiring frequent operations. This ensures unparalleled control and efficiency, providing an essential asset for modern electrical infrastructures.
Structural Features:
Meticulously crafted with unwavering precision, the circuit breaker showcases a refined three-phase pillar dry design;
Expertly engineered with a fully enclosed structure, it offers outstanding sealing, exceptional moisture resistance, and anti-condensation properties, making it perfect for high-temperature and humid environments;
Employs cutting-edge vacuum arc extinguishing technology, ensuring extraordinary insulation reliability;
Guarantees flawless opening and closing performance, ensuring safety with no risk of combustion or explosion;
Designed to be compact and lightweight, this sophisticated device requires no maintenance and boasts an impressive lifespan;
Features versatile operation capabilities, with manual, electric, or remote control options available for ultimate convenience;
The operating mechanism is securely sealed at the switch box's base, efficiently protecting against outdoor environmental corrosion;
Showcases an innovative and streamlined design that includes a restless mechanism, ensuring 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 |