| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, revered as the 'circuit breaker,' this outdoor distribution switchgear exemplifies excellence with its operation at a rated voltage of 12kV and a formidable three-phase AC of 50Hz. This dynamic and adaptable circuit breaker is masterfully engineered to manage the interruption and connection of load current, overload current, and short circuit current within the electrical framework. With advanced overload and short circuit protective features, it effortlessly meets control and measurement requirements while offering sophisticated remote control and monitoring functionalities. Its extensive application stretches across substations, industrial environments, and mining enterprise distribution systems, providing unmatched control and operations—making it the ideal choice for settings with frequent operational demands.
Structural features:
Exquisitely crafted with precision, the circuit breaker displays a three-phase pillar dry design;
Ingeniously engineered with a fully enclosed structure, it ensures superior sealing, outstanding moisture resistance, and remarkable anti-condensation properties, making it the optimal selection for high-temperature and humid regions;
Incorporates cutting-edge vacuum arc extinguishing technology for superior insulation reliability;
Ensures flawless opening and closing performance, guaranteeing safety with no risk of combustion or explosion;
Compact and lightweight, this product requires no maintenance and promises an impressive longevity;
Offers operational versatility with manual, electric, or remote control options;
The operating mechanism is intricately sealed at the base of the switch box, effectively protecting against environmental corrosion from outdoor elements;
Features an innovative, simplistic design with a restless mechanism that guarantees reliable dynamic performance, a compact form, and an astounding service life 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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