| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12, an outdoor high voltage vacuum circuit breaker, fondly termed the 'circuit breaker.' This outstanding piece of outdoor distribution switchgear is meticulously crafted for operation at a rated voltage of 12kV, fortified by a robust three-phase AC of 50Hz. This dynamic circuit breaker is adept at managing the interruption and connection of load current, overload current, and short circuit current within the power grid. It features sophisticated overload and short circuit protective capabilities, seamlessly catering to control and measurement needs while offering cutting-edge remote control and monitoring functionalities. Its widespread application extends across substations, industrial environments, and mining enterprise distribution systems. The ZW32-12 circuit breaker delivers unmatched control and operational excellence, making it an ideal choice for environments demanding frequent operational efficiency.
Structural features:
Exquisitely crafted, the circuit breaker presents a three-phase pillar dry design, epitomizing precision engineering;
Built with a fully enclosed structure, it delivers outstanding sealing, excellent moisture resistance, and anti-condensation capabilities, rendering it an impeccable choice for high-temperature and humid environments;
Utilizes cutting-edge vacuum arc extinguishing technology, ensuring superior insulation reliability;
Achieves impeccable opening and closing performance, prioritizing safety with zero risk of combustion or explosion;
Compact and lightweight, it demands no maintenance and promises an admirable lifespan;
Offers operational versatility with manual, electric, or remote control options;
The operating mechanism is intricately sealed at the switch box's base, providing robust protection against outdoor environmental corrosion;
Boasts a novel, minimalist design coupled with a restless mechanism, guaranteeing 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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