| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Meet the ZW32-12 outdoor high voltage vacuum circuit breaker, affectionately hailed as the 'circuit breaker.' This outstanding piece of outdoor distribution switchgear is designed for a rated voltage of 12kV, with a formidable three-phase AC of 50Hz. Its versatility is unmatched as it deftly manages the interruption and connection of load, overload, and short circuit currents within the power grid. With its advanced features, this circuit breaker excels in overload and short circuit protection, effortlessly meeting control and measurement standards. It also offers sophisticated remote control and monitoring abilities. Widely used in substations, industrial environments, and mining enterprise distribution systems, it stands as a paragon of control and operation, ideal for scenarios demanding frequent operations.
Structural features:
Crafted with precision, the circuit breaker epitomizes excellence with its three-phase pillar dry design;
Engineered with a fully enclosed structure, it provides exceptional sealing and moisture resistance, complete with anti-condensation capabilities, making it the superior choice for high-temperature and humid areas;
Utilizes cutting-edge vacuum arc extinguishing technology, ensuring outstanding insulation reliability;
Delivers impeccable opening and closing performance, guaranteeing safety with no risk of combustion or explosion;
Compact and lightweight, this circuit breaker requires no maintenance and promises a remarkable lifespan;
Offers operational versatility with manual, electric, or remote control options;
The operating mechanism is meticulously sealed at the switch box base, providing robust protection against outdoor environmental corrosion;
Showcases a novel and simplistic design, featuring a restless mechanism that ensures reliable dynamic performance, a compact form, and an impressive 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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