Customization: | Available |
---|---|
Type: | High-voltage |
Structure: | Three-column Disconnector |
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, the quintessential solution meticulously crafted for contemporary outdoor distribution networks. Known endearingly as the 'circuit breaker,' this advanced switchgear is brilliantly engineered for a robust 12kV rated voltage and a resilient three-phase AC at 50Hz. This dynamic circuit breaker excels in managing the interruption and reconnection of load current, overload current, and short circuit current within power grids. It exhibits cutting-edge overload and short circuit protective capabilities, seamlessly fulfilling control and measurement needs while offering sophisticated remote control and monitoring functions. Its extensive application range spans substations, industrial arenas, and mining enterprise distribution systems, making it the ultimate choice for environments requiring frequent operations, ensuring unmatched control and efficiency.
Structural Features:
Meticulously crafted, this circuit breaker showcases a refined three-phase pillar dry design, ensuring optimal performance and reliability.
Expertly engineered with a fully enclosed structure, it offers outstanding sealing, exceptional moisture resistance, and anti-condensation attributes, making it ideal for high-temperature and humid environments.
Utilizes state-of-the-art vacuum arc extinguishing technology, offering unparalleled insulation reliability and safety.
Ensures impeccable opening and closing performance, meticulously guaranteeing safety with no risk of combustion or explosion.
Designed to be compact and lightweight, this circuit breaker requires no maintenance and boasts an impressive lifespan.
Features versatile operation with manual, electric, or remote control options available, catering to diverse operational needs.
The operating mechanism is carefully sealed at the switch box's base, providing effective protection against outdoor environmental corrosion.
Showcases an innovative and simplified design with 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 |