| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, the ultimate solution for modern outdoor distribution networks. Familiarly known as the 'circuit breaker,' this top-tier switchgear is designed with precision for a 12kV rated voltage and a robust three-phase AC at 50Hz. This versatile circuit breaker is exceptional in its ability to interrupt and reconnect load, overload, and short circuit currents smoothly within power grids. It boasts state-of-the-art overload and short circuit protection capabilities, adeptly addressing control and measurement demands, while offering highly advanced remote control and monitoring functions. With its extensive application across substations, industrial sectors, and mining enterprise distribution systems, it stands as the premium choice for environments necessitating frequent operations. This guarantees unparalleled control and efficiency, making it an essential asset for modern electrical infrastructure.
Structural Features:
Meticulously crafted with precision, the circuit breaker showcases a refined three-phase pillar dry design;
Expertly engineered with a fully enclosed structure, it offers exceptional sealing, superior moisture resistance, and anti-condensation properties, making it perfect for high-temperature and humid conditions;
Employs cutting-edge vacuum arc extinguishing technology, ensuring outstanding insulation reliability;
Delivers impeccable opening and closing performance, ensuring safety with zero risk of combustion or explosion;
Compact and lightweight in design, this advanced device is maintenance-free, boasting an extended lifespan;
Features versatile operation capabilities, with manual, electric, or remote control options for utmost convenience;
The operating mechanism is strategically sealed at the switch box's base, effectively protecting against outdoor environmental corrosion;
Exhibits an innovative and simplified design with a restless 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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