| 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, renowned as the 'circuit breaker' of choice. This sophisticated outdoor distribution switchgear is meticulously engineered to function at a formidable rated voltage of 12kV, with an impressive three-phase AC of 50Hz. Masterfully adept at managing the interruption and reconnection of load current, overload current, and short circuit current, it is an essential component for any power grid. With state-of-the-art overload and short circuit protection, it seamlessly meets control and measurement needs, whilst offering cutting-edge remote control and monitoring features. Its versatile application spans from substations to industrial settings and mining enterprises, ensuring peerless control and operation, particularly suited for environments demanding frequent operations.
Structural features:
Precision-crafted to perfection, the circuit breaker is distinguished by its robust three-phase pillar dry design;
With an exceptional fully enclosed structure, it excels in sealing capabilities, delivering outstanding moisture resistance and anti-condensation properties, rendering it an ideal choice for high-temperature and humid regions;
Utilizes revolutionary vacuum arc extinguishing technology, providing superior insulation reliability;
Exhibits impeccable opening and closing performance, ensuring an unparalleled level of safety with zero risk of combustion or explosion;
Remarkably compact and lightweight, it is designed to be maintenance-free and promises an extraordinary lifespan;
Offers remarkable versatility with manual, electric, or remote control options available for operation;
The operating mechanism is expertly sealed at the base of the switch box, delivering exceptional protection against environmental corrosion typically faced outdoors;
Showcases an innovative, simplistic design with an advanced restless mechanism that guarantees reliable dynamic performance, a compact form, and an astonishing service life extending 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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