| 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 exemplary piece of outdoor distribution switchgear is meticulously crafted to perform at a rated voltage of 12kV, utilizing a robust three-phase AC operating at 50Hz. This highly adaptable circuit breaker excels in managing the interruption and connection of load currents, overload currents, and short circuit currents across the power grid. Enhanced with advanced overload and short circuit protection, it seamlessly meets control and measurement requirements while offering state-of-the-art remote control and monitoring functions. Its extensive applications span substations, industrial environments, and mining enterprise distribution systems, delivering exceptional control and operation—perfectly suited for settings that require frequent intervention.
Structural Features:
With precision engineering, the circuit breaker boasts a meticulously designed three-phase pillar dry framework;
Featuring a fully enclosed design, it offers superior sealing, outstanding moisture resistance, and exceptional anti-condensation properties, making it an ideal choice for high-temperature and humid environments;
It incorporates cutting-edge vacuum arc extinguishing technology, ensuring premier insulation reliability;
Provides impeccable opening and closing performance, guaranteeing safety without any risk of combustion or explosion;
Compact and lightweight, it requires no maintenance and ensures a remarkable lifespan;
Adaptable in operation with manual, electric, or remote control options available;
The operating mechanism is expertly sealed at the base of the switch box, offering comprehensive protection against environmental corrosion;
Exhibiting an innovative and straightforward design, it employs a steadfast mechanism that ensures reliable dynamic performance, a compact form, and an astonishing service life extending 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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