| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, expertly crafted for optimum performance in outdoor settings. Often referred to as the 'circuit breaker,' this exceptional piece of switchgear operates seamlessly at a standard voltage of 12kV, with a robust three-phase AC at 50Hz. Its versatile design accommodates the interruption and connection of load current, overload current, and short circuit current in power grids. With state-of-the-art overload and short circuit protection, it effortlessly meets control and measurement standards, providing sophisticated remote control and monitoring functionalities. Its extensive application across substations, industrial sites, and mining enterprise distribution systems underscores its unparalleled control and operation—making it the ideal choice for settings requiring frequent operations.
Structural features:
Skillfully crafted, the circuit breaker features a highly efficient three-phase pillar dry design;
Designed with a fully enclosed structure, this breaker offers superior sealing, exceptional moisture resistance, and anti-condensation properties, making it an unrivaled option for high-temperature and humid regions;
Utilizes cutting-edge vacuum arc extinguishing technology, providing remarkable insulation reliability;
Ensures flawless opening and closing performance, delivering safety with no combustion or explosion risks;
This compact and lightweight marvel requires no maintenance and promises an impressive lifespan;
Offers versatility in operation with manual, electric, or remote control options available;
The robust operating mechanism is thoroughly sealed at the base of the switch box, effectively protecting against environmental corrosion;
Boasts a novel and simplistic design with a restless mechanism, ensuring reliable dynamic performance, compactness, and an astounding 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 |
|||
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