| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, affectionately referred to as the 'circuit breaker.' This outstanding outdoor distribution switchgear operates harmoniously at a rated voltage of 12kV, supported by a resilient three-phase AC of 50Hz. Designed with versatility in mind, this circuit breaker adeptly manages the interruption and reconnection of load current, overload current, and short circuit current within power grids. It excels with its superior overload and short circuit protective capabilities, meeting control and measurement requirements with ease while offering state-of-the-art remote control and monitoring. Its extensive application covers substations, industrial facilities, and mining enterprise distribution systems, ensuring unparalleled control and operation, particularly in environments demanding frequent operations.
Structural features:
This circuit breaker is artfully crafted with a precise three-phase pillar dry design, embodying engineering excellence;
Designed with a fully enclosed structure, it provides exceptional sealing, moisture resistance, and anti-condensation properties, making it the ideal choice for deployment in high-temperature and humid regions;
Incorporates cutting-edge vacuum arc extinguishing technology for exceptional insulation reliability, setting a new standard in the industry;
Boasts flawless opening and closing performance, ensuring safety with zero risk of combustion or explosion, delivering peace of mind for users;
Remarkably compact and lightweight, it requires no maintenance while ensuring an impressive lifespan, making it an efficient choice;
Offers operational versatility with manual, electric, or remote control options, catering to diverse user needs and preferences;
The operating mechanism is expertly sealed at the switch box's base, providing robust protection against outdoor environmental corrosion;
Features an innovative, simplistic design with a restless mechanism, ensuring reliable dynamic performance, compact form, and a remarkable 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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