| 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 and reliability for modern outdoor distribution networks. Affectionately referred to as the 'circuit breaker,' this state-of-the-art switchgear is meticulously designed 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 protection capabilities, flawlessly catering to control and measurement needs while providing sophisticated remote control and monitoring functionalities. With its extensive range of applications, it is the ultimate choice for substations, industrial sectors, and mining enterprise distribution systems, ensuring reliable performance in environments that demand frequent operations, thereby guaranteeing exceptional control and efficiency.
Structural Features:
Meticulously crafted with precision, the circuit breaker showcases a refined three-phase pillar dry design;
Expertly engineered with a fully enclosed structure, it offers outstanding sealing, exceptional moisture resistance, and anti-condensation capabilities, making it ideal for high-temperature and humid environments;
Incorporates cutting-edge vacuum arc extinguishing technology, delivering exceptional insulation reliability;
Ensures impeccable opening and closing performance, enhancing safety with zero risk of combustion or explosion;
Designed to be compact and lightweight, it is maintenance-free and boasts an impressive lifespan;
Features versatile operation with manual, electric, or remote control options, providing flexibility;
The operating mechanism is meticulously sealed at the switch box's base, offering superior protection against outdoor environmental corrosion;
Showcases an innovative and simplified design with a restless mechanism, ensuring 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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