| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, a standout in outdoor distribution switchgear known simply as the 'circuit breaker.' It operates magnificently at a 12kV rated voltage with a robust three-phase AC of 50Hz. This adaptable circuit breaker excels in managing the interruption and connection of load current, overload current, and short circuit current in the power grid. It features advanced protective capabilities against overloads and short circuits, effortlessly meeting control and measurement standards, while providing cutting-edge remote control and monitoring functionalities. Widely used in substations, industrial settings, and mining enterprise distribution systems, it is the perfect solution for environments requiring frequent operational control and superior performance.
Structural Features:
Crafted with unmatched precision, the circuit breaker flaunts a three-phase pillar dry design;
Designed with a fully enclosed structure, it provides excellent sealing, remarkable moisture resistance, and anti-condensation qualities, making it ideal for high-temperature and humid conditions;
Utilizes cutting-edge vacuum arc extinguishing technology, guaranteeing exceptional insulation reliability;
Ensures impeccable opening and closing performance, prioritizing safety with zero risk of combustion or explosion;
Lightweight, compact, and maintenance-free, it promises an extraordinary lifespan;
Offers versatile operation with manual, electric, or remote control options;
The operating mechanism is expertly sealed at the base of the switch box, providing robust defense against outdoor environmental corrosion;
Presents an innovative, minimalistic design with a tireless mechanism offering reliable dynamic performance, a compact form, and an impressive 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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