Customization: | Available |
---|---|
Type: | High-voltage |
Structure: | Three-column Disconnector |
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, an embodiment of excellence for modern outdoor distribution networks. Revered as the 'circuit breaker,' this superior switchgear is meticulously crafted for a 12kV rated voltage and a robust three-phase AC at 50Hz. This dynamic marvel excels in effortlessly managing the interruption and reconnection of load current, overload current, and short circuit current within power grids. It showcases cutting-edge overload and short circuit protective capabilities, adeptly fulfilling control and measurement needs while offering sophisticated remote control and monitoring functions. Its broad application scope extends to substations, industrial sectors, and mining enterprise distribution systems, marking it as the ultimate choice for environments necessitating frequent operations. This ensures unparalleled control and efficiency, providing an indispensable cornerstone for state-of-the-art electrical infrastructures.
Structural Features:
Meticulously crafted with precision, this circuit breaker features a distinguished three-phase pillar dry design;
Expertly engineered with a fully enclosed structure, it offers remarkable sealing, superior moisture resistance, and anti-condensation properties, making it ideal for high-temperature and humid environments;
Employing cutting-edge vacuum arc extinguishing technology, it guarantees unparalleled insulation reliability;
Ensures flawless opening and closing performance, safeguarding safety without any risk of combustion or explosion;
Designed to be compact and lightweight, this advanced device demands no maintenance, featuring an impressive lifespan;
Boasts versatile operation capabilities with options for manual, electric, or remote control, ensuring utmost convenience;
The operating mechanism is securely sealed at the switch box's base, providing effective defense 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 |