| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, a standout in the realm of outdoor distribution switchgear. Known as the 'circuit breaker,' this marvel operates at an impressive rated voltage of 12kV with a strong three-phase AC of 50Hz. With finesse, it manages the interruption and connection of load current, overload current, and the formidable short circuit current within the power grid. Its cutting-edge overload and short circuit protective features meet and exceed control and measurement demands, providing sophisticated remote control and monitoring capabilities. This powerhouse of technology finds widespread application in substations, industrial environments, and mining enterprise distribution systems, offering unmatched control and operation, making it the perfect fit for high-frequency operation settings.
Structural Features
Engineered with precision, the circuit breaker boasts a three-phase pillar dry design, ensuring robust performance;
Built with a fully enclosed structure, it provides outstanding sealing capabilities, remarkable moisture resistance, and anti-condensation attributes, ideal for high-temperature and humid regions;
Incorporates cutting-edge vacuum arc extinguishing technology, delivering superior insulation reliability;
Ensures impeccable opening and closing operations, providing safety without the risk of combustion or explosion;
Compact and lightweight, designed for zero maintenance, and offers an exceptional lifespan;
Offers versatile operational modes - manual, electric, or remote control - tailored to your needs;
The operating mechanism is expertly sealed at the base of the switch box, effectively protecting against environmental corrosion;
Presents an innovative and simple design with a restless mechanism that guarantees reliable dynamic performance, a compact structure, 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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