| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, affectionately dubbed the 'circuit breaker,' this masterpiece of outdoor distribution switchgear is crafted to operate at a rated voltage of 12kV, with a powerful three-phase AC of 50Hz. This adaptable circuit breaker adeptly manages the interruption and connection of load current, overload current, and short circuit current within the power grid. It features cutting-edge overload and short circuit protective capabilities, effortlessly fulfilling control and measurement needs while offering sophisticated remote control and monitoring functionalities. Its extensive application spans substations, industrial sectors, and mining enterprises' distribution systems, providing unmatched control and operational excellence, ideal for settings requiring frequent operations.
Structural features:
Meticulously crafted, the circuit breaker exhibits a three-phase pillar dry design, ensuring unparalleled performance;
Designed with a fully enclosed structure, it delivers superior sealing, exceptional moisture resistance, and anti-condensation qualities, making it an excellent choice for high-temperature and humid locales;
Utilizes cutting-edge vacuum arc extinguishing technology, offering remarkable insulation reliability;
Ensures impeccable opening and closing performance, safeguarding safety with zero risk of combustion or explosion;
Boasts a compact, lightweight design, is maintenance-free, and guarantees an impressive operational lifespan;
Operational versatility is key, with options for manual, electric, or remote control;
The operating mechanism is expertly sealed at the base of the switch box, ensuring protection from outdoor environmental corrosion;
Presents a novel, simplistic design with a restless mechanism that guarantees dependable 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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