| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12, a top-tier outdoor high voltage vacuum circuit breaker, affectionately known as the 'circuit breaker.' This exceptional outdoor distribution switchgear is masterfully crafted to operate at a rated voltage of 12kV, featuring a formidable three-phase AC of 50Hz. Designed with versatility in mind, this circuit breaker is adept at flawlessly handling the interruption and connection of load current, overload current, and short circuit current within the power grid. It is equipped with advanced overload and short circuit protection, seamlessly meeting control and measurement needs while offering cutting-edge remote control and monitoring capabilities. Its extensive application range encompasses substations, industrial settings, and mining enterprise distribution systems, delivering unmatched control and operation—ideal for environments demanding frequent operations.
Structural Features:
Meticulously crafted, the circuit breaker features an innovative three-phase pillar dry design;
Skillfully engineered with a fully enclosed structure, it provides outstanding sealing, unparalleled moisture resistance, and excellent anti-condensation properties, making it an optimal choice for high-temperature and humid regions;
Utilizes cutting-edge vacuum arc extinguishing technology, ensuring excellent insulation reliability;
Achieves perfect opening and closing performance, guaranteeing safety without the risk of combustion or explosion;
Boasts a compact, lightweight design that requires no maintenance, offering an impressive lifespan;
Offers versatility in operation, with manual, electric, or remote control options available;
The operating mechanism is expertly sealed at the base of the switch box, providing effective protection against environmental corrosion;
Featuring a novel, simplistic design with a dynamic mechanism, it ensures reliable performance, a compact form, and an extraordinary service life of 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 |
|||
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