| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, affectionately known in the industry as the 'circuit breaker.' This masterfully engineered piece of outdoor distribution switchgear is designed for operation at a rated voltage of 12kV, supported by a robust three-phase AC of 50Hz. Its versatile prowess allows it to adeptly manage the interruption and connection of load current, overload current, and short circuit current within the power grid. The circuit breaker is equipped with cutting-edge overload and short circuit protective capabilities, effortlessly meeting control and measurement requirements. Additionally, it offers sophisticated remote control and monitoring functionalities, making it indispensable for substations, industrial settings, and mining enterprise distribution systems. Its unparalleled control and operational efficiency make it the ideal solution for environments that demand frequent operations.
Structural Features:
Precision-crafted, the circuit breaker features a distinctive three-phase pillar dry design;
Its fully enclosed structure provides unmatched sealing, along with exceptional moisture resistance and anti-condensation properties, rendering it an optimal choice for high-temperature and humid climates;
Incorporates cutting-edge vacuum arc extinguishing technology, ensuring exceptional insulation reliability;
Guarantees impeccable opening and closing performance, enhancing safety with no risk of fire or explosion;
Remarkably compact and lightweight, this maintenance-free device promises an exceptional lifespan;
Flexible operation options include manual, electric, or remote control, tailored to diverse needs;
The operating mechanism is securely sealed at the base of the switch box, effectively protecting it from the corrosive effects of the outdoor environment;
Exhibits a novel, minimalist design featuring a stable mechanism that assures reliable dynamic performance, compact structural integrity, and a remarkable service life of up to 10,000 operational 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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