| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, fondly dubbed the 'circuit breaker.' This remarkable piece of outdoor distribution switchgear is meticulously crafted to function at an impressive rated voltage of 12kV, alongside a strong three-phase AC of 50Hz. A masterpiece of versatility, this circuit breaker effortlessly manages the interruption and reconnection of load current, overload current, and short circuit current within the power grid. It proudly features cutting-edge overload and short circuit protective capabilities, ensuring seamless control and measurement functions while offering sophisticated, state-of-the-art remote control and monitoring functions. Its extensive applications span across substations, industrial environments, and mining enterprise distribution systems, providing unmatched control and operation-making it ideal for environments requiring frequent operations.
Structural features:
Expertly crafted with precision, the circuit breaker features a robust three-phase pillar dry design;
Engineered with an impeccably sealed structure, it provides unmatched sealing capabilities, extraordinary moisture resistance, and anti-condensation properties, rendering it the prime choice for high-temperature and humid regions;
Incorporates cutting-edge vacuum arc extinguishing technology, offering exceptional insulation reliability;
Ensures impeccable opening and closing performance, guaranteeing safety with zero risk of combustion or explosion;
Boasts a compact and lightweight design, requiring no maintenance, and promises an extraordinary lifespan;
Offers versatile operation options-manual, electric, or remote control are at your disposal;
The operating mechanism is thoughtfully sealed at the base of the switch box, providing robust protection against outdoor environmental corrosion;
Exhibits a pioneering, simplistic design with a relentless mechanism that guarantees reliable dynamic performance, a compact form, and an extraordinary 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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