| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, an unparalleled solution tailored for modern outdoor distribution networks! Reverently known as the 'circuit breaker', this state-of-the-art switchgear is precisely designed for a 12kV rated voltage and an unwavering three-phase AC at 50Hz. This versatile circuit breaker expertly handles the interruption and reconnection of load current, overload current, and short circuit current within power grids. Its advanced overload and short circuit protective capabilities seamlessly fulfill control and measurement needs, while offering sophisticated remote control and monitoring functions for enhanced operational efficiency. This breaker’s expansive application range includes substations, industrial sectors, and mining enterprise distribution systems, making it the perfect choice for environments demanding frequent operations, ensuring superior control and unrivaled efficiency.
Structural Features:
Meticulously crafted, this circuit breaker boasts a refined three-phase pillar dry design, ensuring robust performance;
Ingeniously engineered with a fully enclosed structure, it delivers outstanding sealing, exceptional moisture resistance, and anti-condensation properties, making it perfect for high-temperature and humid conditions;
Employing cutting-edge vacuum arc extinguishing technology, it provides unparalleled insulation reliability;
Guarantees impeccable opening and closing performance, ensuring utmost safety with no risk of combustion or explosion;
Compact and lightweight, this design offers maintenance-free operation with an impressive lifespan;
Features versatile operation with options for manual, electric, or remote control, offering unmatched flexibility;
The operating mechanism is expertly sealed at the switch box's base, safeguarding against outdoor environmental corrosion;
Proudly showcases an innovative and simplified design with a restless mechanism, ensuring reliable dynamic performance, a compact structure, and an incredible 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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