| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12, an elite outdoor high voltage vacuum circuit breaker, affectionately termed as the 'circuit breaker.' This exceptional piece of outdoor distribution switchgear is meticulously engineered to thrive at a rated voltage of 12kV, operating with a robust three-phase AC of 50Hz. Its versatility shines as it deftly manages the interruption and reconnection of load current, overload current, and short circuit current within the power grid. This device is not just a circuit breaker; it is a guardian of modern electrical infrastructure, offering advanced overload and short circuit protective capabilities. It seamlessly meets modern control and measurement demands while embracing cutting-edge remote control and monitoring functionalities. From substations and industrial settings to mining enterprise distribution systems, it provides unparalleled control and operation, making it an ideal choice for environments that demand frequent operations and unwavering reliability.
Structural Features:
This masterpiece of engineering boasts a finely crafted three-phase pillar dry design;
Designed with a fully enclosed structure, it stands out with superior sealing, exceptional moisture resistance, and anti-condensation properties, rendering it the optimal selection for high-temperature and humid regions;
Incorporates cutting-edge vacuum arc extinguishing technology, ensuring outstanding insulation reliability;
Offers impeccable opening and closing performance, ensuring safety without any risk of combustion or explosion;
Compact and lightweight, it requires no maintenance while promising an impressive lifespan;
Offers remarkable versatility in operation with manual, electric, or remote control options;
The operating mechanism is meticulously secured at the base of the switch box, providing effective protection against outdoor environmental corrosion;
Exhibits a novel, simplistic design coupled with a restless mechanism that assures reliable dynamic performance, compact form, and an astonishing operational 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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