| 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. Endearingly known as the 'circuit breaker,' this state-of-the-art switchgear is precisely engineered for a 12kV rated voltage and a robust three-phase AC at 50Hz. This groundbreaking circuit breaker efficiently handles the interruption and reconnection of load current, overload current, and short circuit current within power grids. It boasts pioneering overload and short circuit protective capabilities, effortlessly fulfilling control and measurement needs while offering sophisticated remote control and monitoring functionalities. Its comprehensive application range includes substations, industrial sectors, and mining enterprise distribution systems, making it the premier choice for environments demanding frequent operations, guaranteeing unparalleled control and efficiency.
Structural Features:
Meticulously crafted, the circuit breaker showcases a refined three-phase pillar dry design;
Expertly engineered with a fully enclosed structure, it delivers outstanding sealing, exceptional moisture resistance, and superior anti-condensation characteristics, perfect for high-temperature and humid environments;
Employs cutting-edge vacuum arc extinguishing technology, ensuring exceptional insulation reliability;
Ensures flawless opening and closing performance, providing safety with no risk of combustion or explosion;
Designed to be compact and lightweight, it requires no maintenance with an impressive lifespan;
Features versatile operation modes with manual, electric, or remote control options;
The operating mechanism is thoughtfully sealed at the switch box's base, safeguarding effectively against outdoor environmental corrosion;
Showcases an innovative and simplified design featuring 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 |
|||
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