| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, an exceptional and essential solution for modern outdoor distribution networks. Fondly regarded as the 'circuit breaker,' this state-of-the-art switchgear is crafted for a robust 12kV rated voltage with a resilient three-phase AC at 50Hz. This dynamic circuit breaker excels in managing the interruption and reconnection of load current, overload current, and short circuit current within power grids. With its pioneering overload and short circuit protective capabilities, it seamlessly fulfills control and measurement needs while offering advanced remote control and monitoring functions. Its vast application range encompasses substations, industrial sectors, and mining enterprise distribution systems, making it the premier choice for environments demanding frequent operations, ensuring unmatched control and peak efficiency.
Structural Features:
Meticulously crafted, this circuit breaker boasts a sophisticated three-phase pillar dry design;
Expertly engineered with a fully enclosed structure, it offers outstanding sealing, superior moisture resistance, and anti-condensation attributes, ideal for high-temperature and humid environments;
Incorporates cutting-edge vacuum arc extinguishing technology, delivering exceptional insulation reliability;
Ensures flawless opening and closing performance, guaranteeing safety with zero risk of combustion or explosion;
Designed to be compact and lightweight, requiring no maintenance, with an impressive, enduring lifespan;
Features versatile operation with manual, electric, or remote control options available;
The operating mechanism is meticulously sealed at the switch box's base, offering effective protection against outdoor environmental corrosion;
Showcases an innovative, streamlined design featuring a restless mechanism, ensuring reliable dynamic performance, a compact structure, and an astonishing 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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