| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker—fondly referred to as the 'circuit breaker.' This superbly engineered outdoor distribution switchgear is tailored for a rated voltage of 12kV, powered by a formidable three-phase AC of 50Hz. With its versatile capabilities, this circuit breaker adeptly manages the interruption and connection of load current, overload current, and short circuit current within the power grid. It features cutting-edge overload and short circuit protection, effortlessly meeting control and measurement demands while offering advanced remote control and monitoring options. Its widespread application in substations, industrial environments, and mining enterprise distribution systems ensures unmatched control and operation, particularly suited for settings requiring frequent operations.
Structural features:
Meticulously crafted, this circuit breaker boasts a sophisticated three-phase pillar dry design;
Designed with an impeccably sealed structure, it excels in providing superior sealing, exceptional moisture resistance, and anti-condensation attributes, making it an ideal selection for high-temperature and humid environments;
Utilizes cutting-edge vacuum arc extinguishing technology to achieve exceptional insulation reliability;
Delivers impeccable opening and closing performance, ensuring maximum safety with zero risk of combustion or explosion;
Compact and lightweight, this maintenance-free innovation promises an outstanding lifespan;
Offers operational versatility with manual, electric, or remote control options to suit diverse needs;
The operating mechanism is expertly sealed at the base of the switch box, providing robust protection against outdoor environmental corrosion;
Showcases a pioneering, minimalist design with a resilient mechanism that guarantees reliable dynamic performance, compact form factor, and a remarkable 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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