Customization: | Available |
---|---|
Type: | High-voltage |
Structure: | Three-column Disconnector |
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, the definitive powerhouse for cutting-edge outdoor distribution networks. Affectionately called the 'circuit breaker,' this state-of-the-art switchgear is expertly designed for a 12kV rated voltage and a robust three-phase AC at 50Hz. This extraordinary circuit breaker excels at skillfully managing the seamless interruption and reconnection of load current, overload current, and short circuit current within power grids. It boasts revolutionary overload and short circuit protective capabilities, effortlessly satisfying control and measurement needs while providing advanced remote control and monitoring functions. Its expansive application range spans substations, industrial settings, and mining enterprise distribution systems, making it the ultimate selection for environments demanding frequent operations. This guarantees unparalleled control and efficiency, making it an indispensable asset for modern electrical infrastructures.
Structural Features:
Meticulously crafted with precision, the circuit breaker showcases a refined three-phase pillar dry design, ensuring uncompromised performance;
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;
Incorporates state-of-the-art vacuum arc extinguishing technology, delivering exceptional insulation reliability;
Guarantees impeccable opening and closing performance, ensuring safety with no risk of combustion or explosion;
Elegantly designed to be compact and lightweight, this sophisticated device requires no maintenance, boasting an impressive lifespan;
Features versatile operation capabilities, with manual, electric, or remote control options available for ultimate convenience;
The operating mechanism is securely sealed at the switch box's base, effectively protecting against outdoor environmental corrosion;
Showcases an innovative and simplified 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 |