| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12, an exceptional outdoor high voltage vacuum circuit breaker often referred to simply as the 'circuit breaker.' This remarkable outdoor distribution switchgear operates flawlessly at a rated voltage of 12kV, powered by a solid three-phase AC of 50Hz. Expertly designed, this versatile circuit breaker adeptly manages the interruption and connection of load current, overload current, and short circuit current within the power grid. Its state-of-the-art design offers advanced overload and short circuit protection, perfectly meeting control and measurement requirements. Moreover, it excels in delivering cutting-edge remote control and monitoring capabilities. Widely favored in substations, industrial environments, and mining enterprises' distribution systems, it provides unmatched control and operation, making it the ideal choice for settings that demand frequent operational excellence.
Structural features:
Expertly crafted, the circuit breaker shines with its three-phase pillar dry design.
Designed with a fully enclosed structure, it offers unmatched sealing, superior moisture resistance, and anti-condensation abilities, making it the ultimate choice for high-temperature and humid climates.
It utilizes cutting-edge vacuum arc extinguishing technology, ensuring exceptional insulation reliability.
It guarantees impeccable opening and closing performance, ensuring utmost safety without any risk of combustion or explosion.
Compact and lightweight, it is maintenance-free and boasts a remarkable lifespan.
Offers operational versatility with manual, electric, or remote control options available.
The operating mechanism is meticulously sealed at the switch box's base, ensuring effective protection against outdoor environmental corrosion.
Features an innovative, simplistic design with a restless mechanism that guarantees reliable dynamic performance, a compact form, and an extraordinary 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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