| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the distinguished ZW32-12 outdoor high voltage vacuum circuit breaker, fondly referred to as the 'circuit breaker.' This remarkable piece of outdoor distribution switchgear is expertly crafted for a rated voltage of 12kV, operating seamlessly within a potent three-phase AC environment at 50Hz. This dynamic circuit breaker excels in managing the interruption and reconnection of load currents, as well as confronting overload currents and short circuit currents with aplomb. It stands as a paragon of modern technology, offering advanced overload and short circuit protection while adhering to stringent control and measurement requirements. Furthermore, it provides state-of-the-art remote control and monitoring capabilities. Its expansive application ranges from substations to industrial settings and mining enterprise distribution systems, offering unparalleled control and operational excellence, particularly in environments demanding frequent operations.
Structural features:
Designed with meticulous precision, the circuit breaker features a sophisticated three-phase pillar dry design;
Engineered with a fully enclosed structure, it guarantees superior sealing, exceptional moisture resistance, and robust anti-condensation properties. This makes it an impeccable choice for high-temperature and humid regions;
Integrates cutting-edge vacuum arc extinguishing technology, ensuring outstanding insulation reliability;
Offers flawless opening and closing performance, ensuring absolute safety with zero risk of combustion or explosion;
Remarkably compact and lightweight, it requires no maintenance and promises a remarkable lifespan;
Exhibits operational versatility with manual, electric, or remote control options available;
The operating mechanism is expertly sealed at the switch box's base, providing exceptional protection against outdoor environmental corrosion;
Presents a novel, minimalist design with a restless mechanism ensuring reliable dynamic performance, 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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