| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Discover the ZW32-12 outdoor high voltage vacuum circuit breaker, affectionately termed the 'circuit breaker.' This outstanding piece of outdoor distribution switchgear is optimized to operate at a rated voltage of 12kV, featuring a powerful three-phase AC of 50Hz. It is expertly engineered to manage load current, overload current, and short circuit current interruptions and connections within the power grid. This remarkable breaker is renowned for its advanced overload and short circuit protection, fulfilling control and measurement requisites with ease, while offering sophisticated remote control and monitoring capabilities. Its extensive application extends across substations, industrial domains, and mining enterprise distribution networks, delivering unmatched control and operation—an ideal solution for high-frequency operational environments.
Structural features:
Meticulously crafted, this circuit breaker features a three-phase pillar dry design, ensuring precision and durability;
With an expertly engineered fully enclosed structure, it provides unmatched sealing, exceptional moisture resistance, and anti-condensation properties, making it the superior choice for high-temperature and humid conditions;
Utilizes cutting-edge vacuum arc extinguishing technology, delivering superior insulation reliability;
Achieves impeccable opening and closing operations, guaranteeing safety with zero risk of combustion or explosion;
Designed to be compact and lightweight, it requires no maintenance and offers a remarkable lifespan;
Offers operational versatility with manual, electric, or remote control options;
The operating mechanism is expertly sealed at the switch box's base, providing effective protection against environmental corrosion;
Exhibits a novel, minimalist design with a restless mechanism, ensuring reliable dynamic performance, a compact form, and an extraordinary 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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