| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, the pinnacle of modern technology for contemporary outdoor distribution networks. Often hailed as the indispensable 'circuit breaker,' this state-of-the-art switchgear is masterfully engineered for a 12kV rated voltage and a robust three-phase AC at 50Hz. This versatile circuit breaker excels in managing the interruption and reconnection of load current, overload current, and short circuit current within power grids. It boasts advanced overload and short circuit protective capabilities, seamlessly aligning with control and measurement needs. With sophisticated remote control and monitoring functions, its extensive application range includes substations, industrial spheres, and mining enterprise distribution systems. It stands out as the ultimate choice for environments demanding frequent operations, delivering unmatched control and efficiency.
Structural Features:
Meticulously crafted, the circuit breaker exhibits a refined three-phase pillar dry design;
Expertly engineered with a fully enclosed structure, it offers remarkable sealing, exceptional moisture resistance, and anti-condensation properties, perfect for high-temperature and humid environments;
Incorporates state-of-the-art vacuum arc extinguishing technology, ensuring exemplary insulation reliability;
Delivers impeccable opening and closing performance, ensuring safety with no risk of combustion or explosion;
Designed to be compact and lightweight, it boasts a maintenance-free operation with an impressive lifespan;
Offers versatile operation with options for manual, electric, or remote control;
The operating mechanism is meticulously sealed at the switch box's base, effectively shielding against outdoor environmental corrosion;
Presents an innovative and simplified design featuring a restless mechanism, ensuring reliable dynamic performance, a compact structure, and an astonishing 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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