| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Enter the world of advanced electrical solutions with the ZW32-12 outdoor high voltage vacuum circuit breaker, affectionately termed the 'circuit breaker.' This remarkable piece of outdoor distribution switchgear is engineered for excellence with a rated voltage of 12kV and a powerful three-phase AC of 50Hz. This highly adaptable circuit breaker excels in interrupting and connecting load current, managing overload current, and handling short circuit current within the power grid with ease. It is adorned with superior overload and short circuit protection features, seamlessly meeting control and measurement requirements while offering sophisticated remote control and monitoring capabilities. Widely used across substations, industrial domains, and mining enterprise distribution systems, it ensures unparalleled control and operation, making it the ideal choice for environments with frequent operations.
Structural Features:
Every detail of the circuit breaker is meticulously crafted for precision, featuring a three-phase pillar dry design;
It is engineered with a fully enclosed structure that offers unmatched sealing, exceptional moisture resistance, and anti-condensation characteristics, making it the perfect choice for any high-temperature and humid regions;
Employing cutting-edge vacuum arc extinguishing technology, it ensures exceptional insulation reliability;
Experience flawless opening and closing performance, providing top-tier safety with no risk of combustion or explosion;
The design is compact, lightweight, requires no maintenance, and guarantees an impressive lifespan;
Operational versatility is at your fingertips with options for manual, electric, or remote control;
The operating mechanism is meticulously sealed at the base of the switch box, providing robust protection against outdoor environmental corrosion;
This circuit breaker showcases a novel, simplified design with a restless mechanism that delivers reliable dynamic performance, a compact form, and an astounding 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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