| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, often referred to as the 'circuit breaker,' this pinnacle of outdoor distribution switchgear is engineered to perform at a rated voltage of 12kV, supported by a formidable three-phase AC of 50Hz. This dynamic circuit breaker is adept at managing the interruption and reconnection of load currents, overload currents, and short circuit currents within the power grid. It excels in advanced overload and short circuit protective measures, effortlessly meeting control and measurement standards while providing cutting-edge remote control and monitoring capabilities. Widely employed across substations, industrial settings, and mining enterprise distribution systems, it offers unrivaled control and operation—perfectly suited for environments demanding frequent operations.
Structural features:
Meticulously crafted, the circuit breaker exhibits a sophisticated three-phase pillar dry design;
Designed with a fully enclosed structure, it provides exceptional sealing, outstanding moisture resistance, and superior anti-condensation properties, making it the ideal choice for high-temperature and humid environments;
Incorporates cutting-edge vacuum arc extinguishing technology to achieve remarkable insulation reliability;
Ensures impeccable opening and closing performance, guaranteeing safety without any risk of combustion or explosion;
This compact, lightweight device is maintenance-free and offers an impressive lifecycle;
Offers operational versatility with manual, electric, or remote control options available;
The operating mechanism is expertly sealed at the base of the switch box, providing robust protection against outdoor environmental corrosion;
Showcases an innovative, minimalist design with an unwavering mechanism that assures reliable dynamic performance, a compact profile, and a remarkable 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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