| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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The ZW32-12 outdoor high voltage vacuum circuit breaker, affectionately branded as the 'circuit breaker,' stands as a pinnacle of outdoor distribution switchgear engineering. Operating seamlessly at a rated voltage of 12kV with a resilient three-phase AC of 50Hz, this versatile circuit breaker excels in interrupting and reconnecting load current, overload current, and short circuit current within power grids. It showcases advanced overload and short circuit protection, effortlessly meeting control and measurement standards while offering sophisticated remote control and monitoring capabilities. Widely adopted in substations, industrial sectors, and mining enterprise distribution systems, it delivers unmatched control and operational excellence, making it the quintessential choice for environments prone to frequent operations.
Structural features:
Crafted with precision, this circuit breaker features an innovative three-phase pillar dry design that exemplifies engineering excellence;
Designed with a fully enclosed structure, it ensures superior sealing and offers remarkable resistance to moisture and condensation, making it an ideal solution for high-temperature and humid environments;
Incorporates state-of-the-art vacuum arc extinguishing technology, ensuring impeccable insulation reliability;
Guarantees flawless opening and closing actions, ensuring there is no risk of combustion or explosion, thus prioritizing safety;
Boasts a compact, lightweight build, requires no maintenance, and offers an impressive lifespan to enhance efficiency and reliability;
Operation versatility is achieved through manual, electric, or remote control options, catering to diverse operational needs;
The operating mechanism is expertly sealed at the base of the switch box, providing robust protection against outdoor environmental corrosion;
Features a groundbreaking, simplistic design with a restless mechanism, offering reliable dynamic performance, compactness, 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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