| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, the epitome of excellence for modern outdoor distribution networks. Often referred to as the 'circuit breaker,' this state-of-the-art switchgear is designed for a 12kV rated voltage and a robust three-phase AC at 50Hz. This remarkable circuit breaker excels at managing the interruption and reconnection of load current, overload current, and short circuit current within power grids. It features advanced overload and short circuit protective capabilities, flawlessly addressing control and measurement needs while offering sophisticated remote control and monitoring functions. Its broad application range spans substations, industrial arenas, and mining enterprise distribution systems, establishing it as the definitive choice for environments necessitating frequent operations, ensuring unparalleled control and efficiency.
Structural Features:
Meticulously crafted with precision, the circuit breaker boasts a refined three-phase pillar dry design;
Expertly engineered with a fully enclosed structure, it offers superior sealing, remarkable moisture resistance, and anti-condensation qualities, making it perfect for high-temperature and humid environments;
Employs cutting-edge vacuum arc extinguishing technology, providing exceptional insulation reliability;
Guarantees impeccable opening and closing performance, ensuring safety with no risk of combustion or explosion;
Designed to be compact and lightweight, requiring zero maintenance with an impressive lifespan;
Offers versatile operation with manual, electric, or remote control options available;
The operating mechanism is meticulously sealed at the switch box's base, effectively safeguarding against outdoor environmental corrosion;
Features 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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