| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12—a pinnacle in outdoor high voltage vacuum circuit breakers. This advanced circuit breaker, affectionately dubbed the 'circuit breaker,' is engineered to excel with a rated voltage of 12kV and a formidable three-phase AC of 50Hz. Its exceptional capabilities extend to handling load current, overload current, and short circuit current efficiently within the power grid. With cutting-edge overload and short circuit protection, it meets all control and measurement standards, complemented by sophisticated remote control and monitoring features. Its adaptability makes it indispensable across substations, industrial zones, and mining distribution systems, ensuring superior control and seamless operation, especially in environments demanding frequent action.
Structural features:
Expertly crafted, the circuit breaker features a precision-engineered three-phase pillar dry design;
Designed with an advanced fully enclosed structure, it delivers unmatched sealing, superior moisture resistance, and outstanding anti-condensation capabilities, making it the prime choice for high-temperature, humid areas;
Utilizes cutting-edge vacuum arc extinguishing technology, guaranteeing exceptional insulation reliability and stability;
Offers impeccable opening and closing performance, ensuring absolute safety with zero risk of combustion or explosion;
Boasts a compact, lightweight design that requires no maintenance and ensures a remarkable lifespan;
Provides operational versatility with manual, electric, or remote control options to suit varying needs;
The operational mechanism is meticulously secured at the base of the switch box, providing unmatched protection against outdoor environmental corrosion;
Features an innovative, streamlined design with a resilient mechanism ensuring reliable dynamic performance, a compact form, 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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