| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, the quintessential solution for modern outdoor power distribution networks. Affectionately known as the 'circuit breaker,' this sophisticated switchgear is designed for a 12kV rated voltage and a robust three-phase AC at 50Hz. This dynamic circuit breaker is expertly crafted to manage the interruption and reconnection of load, overload, and short circuit currents within power grids. It showcases state-of-the-art overload and short circuit protective capabilities, seamlessly fulfilling control and measurement needs while offering advanced remote control and monitoring functionalities. Its extensive application encompasses substations, industrial complexes, and mining enterprise distribution systems, making it the ultimate choice for environments necessitating frequent operations, delivering unparalleled control and efficiency.
Structural Features:
Meticulously crafted, this circuit breaker boasts a refined three-phase pillar dry design;
Expertly engineered with a fully enclosed structure, it excels in providing outstanding sealing, exceptional moisture resistance, and anti-condensation properties, making it ideal for high-temperature and humid environments;
Incorporates cutting-edge vacuum arc extinguishing technology, ensuring exceptional insulation reliability;
Guarantees impeccable opening and closing performance, offering utmost safety with no risk of combustion or explosion;
Designed to be compact and lightweight, this circuit breaker is maintenance-free with an impressively long lifespan;
Offers versatile operations with manual, electric, or remote control options, ensuring flexibility and ease of use;
The operating mechanism is carefully sealed at the base of the switch box, effectively safeguarding against outdoor environmental corrosion;
Showcases an innovative and streamlined design featuring a restless mechanism, ensuring reliable dynamic performance, a compact structure, and an astonishing 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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