| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12, the pinnacle of outdoor high voltage vacuum circuit breakers, often referred to as the 'circuit breaker.' This exceptional piece of switchgear is meticulously engineered to operate flawlessly at a rated voltage of 12kV, boasting a robust three-phase AC of 50Hz. Its remarkable versatility allows it to expertly manage the interruption and connection of load current, overload current, and short circuit current within the power grid. Equipped with cutting-edge overload and short circuit protection capabilities, it effortlessly meets stringent control and measurement standards while offering sophisticated remote control and advanced monitoring functions. Its widespread application spans substations, industrial environments, and mining enterprise distribution systems, delivering unmatched control and operation, making it the ideal choice for high-frequency operation settings.
Structural features:
Expertly crafted, the circuit breaker features a distinctive three-phase pillar dry design;
Ingeniously engineered with a fully enclosed structure, it provides superior sealing, exceptional moisture resistance, and anti-condensation properties, rendering it the perfect solution for high-temperature and humid climates;
Incorporates cutting-edge vacuum arc extinguishing technology, ensuring exceptional insulation reliability;
Guarantees impeccable opening and closing performance, prioritizing safety with zero risk of combustion or explosion;
Remarkably compact and lightweight, it requires no maintenance and promises an impressively long lifespan;
Offers operational flexibility with manual, electric, or remote control options available;
The operating mechanism is meticulously encapsulated at the base of the switch box, providing robust protection against environmental corrosion;
Exhibits a novel, minimalist design with a robust 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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