| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Meet the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, a marvel in electrical engineering, affectionately dubbed the 'circuit breaker.' This high-performance outdoor distribution switchgear is meticulously crafted to operate at a rated voltage of 12kV and leverages a powerful three-phase AC of 50Hz. Masterfully adept, this circuit breaker effortlessly manages the interruption and connection of load current, overload current, and short circuit current within the power grid's intricate framework. It is equipped with cutting-edge overload and short circuit protective capabilities, precisely meeting control and measurement requirements, while providing sophisticated remote control and monitoring functionalities. Its extensive applications encompass substations, industrial settings, and mining enterprise distribution systems, offering unmatched control and operational excellence in environments demanding frequent operations.
Structural features:
Exquisitely engineered, this circuit breaker is designed with a three-phase pillar dry configuration;
Crafted with a fully enclosed structure, it ensures superior sealing capabilities, exceptional moisture resistance, and anti-condensation properties, making it an ideal choice for high-temperature and humid regions;
Incorporates cutting-edge vacuum arc extinguishing technology to provide outstanding insulation reliability;
Guarantees flawless opening and closing performance, ensuring safety with zero risks of combustion or explosion;
Exceptionally compact and lightweight, it requires no maintenance and boasts a remarkable lifespan;
Offers versatile operation with manual, electric, or remote control options available;
The operating mechanism is expertly sealed at the base of the switch box, providing robust protection against outdoor environmental corrosion;
Features an innovative, minimalist design with a restless mechanism that assures 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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