| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, a pinnacle of innovation in modern outdoor distribution networks. Often referred to as the 'circuit breaker,' this state-of-the-art switchgear is precisely crafted for a 12kV rated voltage, operating seamlessly within a robust three-phase AC system at 50Hz. This innovative solution excels in managing the interruption and reconnection of load currents, overload currents, and short circuit currents within power grids. Its superior overload and short circuit protective capabilities are matched only by its ability to meet precise control and measurement needs. Offering advanced remote control and monitoring functions, it becomes indispensable across a broad spectrum of applications, including substations, industrial sectors, and mining enterprise distribution systems. This makes it the unrivaled choice for environments demanding frequent operations, guaranteeing unparalleled control and efficiency.
Structural Features:
Meticulously crafted, this circuit breaker boasts a sophisticated three-phase pillar dry design;
Expertly engineered with a fully enclosed structure, it excels in sealing, boasts exceptional moisture resistance, and provides anti-condensation features, making it perfect for high-temperature and humid environments;
Incorporates cutting-edge vacuum arc extinguishing technology, ensuring outstanding insulation reliability;
Delivers flawless opening and closing performance, ensuring maximum safety with no risk of combustion or explosion;
Remarkably compact and lightweight, designed to be maintenance-free with a remarkable lifespan;
Offers versatile operation with options for manual, electric, or remote control;
The operating mechanism is securely sealed at the base of the switch box, providing effective protection against outdoor environmental corrosion;
Showcases a pioneering and simplified design featuring a frictionless mechanism, guaranteeing reliable dynamic performance, a compact structure, and an exceptional 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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