Customization: | Available |
---|---|
Type: | High-voltage |
Structure: | Three-column Disconnector |
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker—a pioneering marvel in modern outdoor distribution networks. Affectionately referred to as the 'circuit breaker,' this state-of-the-art switchgear is meticulously crafted for a 12kV rated voltage and a robust three-phase AC at 50Hz. This dynamic circuit breaker distinguishes itself with its unparalleled capability to seamlessly interrupt and reconnect load current, overload current, and short circuit current within power grids. Its innovative design incorporates cutting-edge overload and short circuit protective features, delivering precise control and measurement solutions alongside advanced remote control and monitoring functionalities. With its broad spectrum of applications, it is perfectly suited for substations, industrial sectors, and mining distribution systems, making it the definitive choice for environments demanding regular operations. This guarantees unrivaled control and efficiency, establishing itself as an essential asset in the realm of modern electrical infrastructures.
Structural Features:
Meticulously crafted with masterful precision, the circuit breaker boasts a sophisticated three-phase pillar dry design;
Expertly engineered with a fully enclosed structure, it ensures unparalleled sealing, superior moisture resistance, and anti-condensation properties, making it the ideal choice for high-temperature and humid conditions;
Utilizes cutting-edge vacuum arc extinguishing technology, ensuring exceptional insulation reliability;
Guarantees impeccable opening and closing performance, ensuring safety with no risk of combustion or explosion;
Engineered to be compact and lightweight, this advanced device is maintenance-free and boasts an impressive lifespan;
Features versatile operation capabilities, with manual, electric, or remote control options available for maximum convenience;
The operating mechanism is meticulously sealed at the base of the switch box, effectively protecting against outdoor environmental corrosion;
Showcases a revolutionary and streamlined design featuring 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 |