| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, a pinnacle of innovation for modern outdoor distribution networks. Affectionately termed the 'circuit breaker,' this state-of-the-art switchgear is meticulously designed for a 12kV rated voltage with an unwavering three-phase AC at 50Hz. This versatile circuit breaker excels in efficiently managing the disconnection and reconnection of load current, overload current, and short circuit current within power systems. Outfitted with cutting-edge overload and short circuit protection, it effortlessly fulfills control and measurement requirements while delivering advanced remote control and monitoring capabilities. Its wide-ranging application includes substations, industrial settings, and mining enterprise distribution systems, making it the paramount choice for environments necessitating frequent operations, offering unparalleled control and efficiency.
Structural Features:
Exquisitely crafted, this circuit breaker boasts a sophisticated three-phase pillar dry design;
Precisely engineered with an entirely enclosed structure, it delivers exceptional sealing, superb moisture resistance, and remarkable anti-condensation properties, perfect for high-temperature and humid conditions;
Employs cutting-edge vacuum arc extinguishing technology, ensuring outstanding insulation reliability;
Guarantees flawless opening and closing performance, assuring safety with zero risk of combustion or explosion;
Compact and lightweight in design, this maintenance-free marvel boasts an impressive lifespan;
Features flexible operation with options for manual, electric, or remote control;
Skillfully sealed at the base of the switch box, the operating mechanism is expertly protected against outdoor environmental corrosion;
Exhibits an innovative and streamlined design with a restless mechanism, ensuring dependable dynamic performance, a compact structure, and an extraordinary service life reaching up to an astounding 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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