Customization: | Available |
---|---|
Type: | High-voltage |
Structure: | Three-column Disconnector |
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, a paragon of innovation for today's outdoor distribution networks. Affectionately known as the 'circuit breaker,' this sophisticated switchgear is superbly crafted for a 12kV rated voltage and robust three-phase AC at 50Hz. This highly dynamic circuit breaker excels at the effortless interruption and reconnection of load current, overload current, and short circuit current within power grids. With state-of-the-art overload and short circuit protective capabilities, it seamlessly fulfills control and measurement needs while offering advanced remote control and monitoring functions. Its broad application range stretches across substations, industrial sectors, and mining enterprise distribution systems, making it the ideal choice for environments demanding frequent operations. This ensures unparalleled control and efficiency, cementing its role as an indispensable asset for cutting-edge electrical infrastructures.
Structural Features:
Meticulously crafted with exceptional precision, the circuit breaker features a beautifully refined three-phase pillar dry design;
Expertly engineered with a fully enclosed structure, it offers outstanding sealing, remarkable moisture resistance, and anti-condensation properties, making it perfect for high-temperature and humid environments;
Utilizes cutting-edge vacuum arc extinguishing technology, providing exceptional insulation reliability;
Ensures flawless opening and closing performance, guaranteeing safety with no risk of combustion or explosion;
Compact and lightweight, this sophisticated device requires no maintenance, boasting an extraordinary lifespan;
Features versatile operation capabilities, offering manual, electric, or remote control options for the utmost convenience;
The carefully sealed operating mechanism at the switch box's base effectively protects against outdoor environmental corrosion;
Showcases an innovative and streamlined 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 |