| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12, our premium outdoor high voltage vacuum circuit breaker, a true marvel in outdoor distribution switchgear. This extraordinary device, affectionately termed the 'circuit breaker,' operates at an impressive rated voltage of 12kV with a robust three-phase AC of 50Hz. It expertly manages the interruption and connection of load current, overload, and short circuit currents within the power grid. Boasting advanced protective measures, it effortlessly aligns with control and measurement demands while offering sophisticated remote control and monitoring capabilities. This breaker finds broad application across substations, industrial domains, and mining enterprise distribution systems, delivering unparalleled control and operation, perfectly suited for environments demanding frequent operations.
Structural features:
Crafted with exceptional precision, this circuit breaker features a state-of-the-art three-phase pillar dry design;
Engineered with a fully enclosed structure, it provides outstanding sealing, remarkable moisture resistance, and anti-condensation qualities, making it the ideal solution for high-temperature and humid locations;
Utilizes cutting-edge vacuum arc extinguishing technology, delivering superior insulation reliability;
Offers impeccable opening and closing performance, ensuring unparalleled safety with zero risks of combustion or explosion;
Compact, lightweight, requiring no maintenance, and guarantees an extraordinary lifespan;
Offers versatile operation with manual, electric, or remote control options;
The meticulously sealed operating mechanism at the switch box base safeguards against outdoor environmental corrosion;
Presents a novel, simplistic design featuring a restless mechanism, ensuring reliable dynamic performance, compact form, and an incredible 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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