| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, a marvel in outdoor distribution switchgear technology. Nicknamed the 'circuit breaker,' this remarkable device is engineered for a powerful rated voltage of 12kV and operates seamlessly with a three-phase AC of 50Hz. Its versatility is unmatched as it expertly manages the interruption and connection of load current, overload current, and short circuit current within the power grid. This circuit breaker excels with its cutting-edge overload and short circuit protective capabilities, effortlessly meeting control and measurement demands while offering advanced remote control and monitoring features. Widely employed across substations, industrial domains, and mining enterprise distribution systems, it provides unrivaled control and operation. Its design is tailored for environments that demand frequent operational activities, ensuring reliability and efficiency.
Structural features:
Meticulously crafted, the circuit breaker boasts a sophisticated three-phase pillar dry design;
This innovative device is engineered with a fully enclosed structure, delivering superb sealing, outstanding moisture resistance, and anti-condensation attributes, making it the ideal choice for high-temperature and humid regions;
Incorporates cutting-edge vacuum arc extinguishing technology to ensure extraordinary insulation reliability;
Provides impeccable opening and closing performance, guaranteeing safety without the risk of combustion or explosion;
Remarkably compact and lightweight, requiring zero maintenance, it pledges an impressive lifespan;
Offers versatile operation options—manual, electric, or remote control, tailored to user needs;
The operating mechanism is expertly sealed at the base of the switch box, providing robust protection against outdoor environmental corrosion;
Exhibits a novel, simplistic design with a dynamic mechanism that guarantees reliable performance, a compact form, and a remarkable 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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