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 innovation for today's outdoor distribution networks. Affectionately esteemed as the 'circuit breaker,' this state-of-the-art switchgear is meticulously designed for a robust 12kV rated voltage and a steadfast three-phase AC at 50Hz. This versatile circuit breaker excels in the seamless interruption and reconnection of load current, overload current, and short circuit current within power grids, ensuring flawless performance. It boasts cutting-edge overload and short circuit protective capabilities, effortlessly fulfilling control and measurement needs while offering advanced remote control and monitoring functions. Its extensive application range spans substations, industrial settings, and mining enterprise distribution systems, making it the ultimate choice for environments demanding frequent operations. This ensures unmatched control and efficiency, providing an indispensable asset for modern electrical infrastructures.
Structural Features:
Meticulously crafted with precision, the circuit breaker features a sophisticated three-phase pillar dry design;
Expertly engineered with a fully enclosed structure, it provides exceptional sealing, outstanding moisture resistance, and superb anti-condensation attributes, ideal for high-temperature and humid environments;
Utilizes cutting-edge vacuum arc extinguishing technology, offering unparalleled insulation reliability;
Ensures impeccable opening and closing performance, guaranteeing safety with no risk of combustion or explosion;
Designed to be compact and lightweight, this advanced device requires no maintenance, boasting an impressive lifespan;
Features versatile operation capabilities, with manual, electric, or remote control options available for supreme convenience;
The operating mechanism is meticulously sealed at the switch box's base, effectively safeguarding against outdoor environmental corrosion;
Showcases an innovative and streamlined design that features 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 |