| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the highly esteemed ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, affectionately known as the 'circuit breaker.' This outstanding piece of outdoor distribution switchgear is meticulously crafted for operations at a rated voltage of 12kV, seamlessly integrating with a robust three-phase AC system of 50Hz. This multifaceted circuit breaker adeptly manages the interruption and connection of load current, overload current, and short circuit current across power grids. It's engineered with cutting-edge overload and short circuit protective capabilities, effortlessly meeting control and measurement requisites while delivering state-of-the-art remote control and monitoring capabilities. Its extensive application spans substations, industrial environments, and mining enterprises, offering unmatched control and operation—tailor-made for environments necessitating frequent operations.
Structural features:
Meticulously crafted with precision, the circuit breaker flaunts an innovative three-phase pillar dry design;
Designed with a fully enclosed construction, it guarantees superior sealing, exceptional moisture resistance, and remarkable anti-condensation properties, rendering it the ideal choice for high-temperature and humid regions;
Utilizes state-of-the-art vacuum arc extinguishing technology to achieve outstanding insulation reliability;
Exhibits impeccable opening and closing performance, ensuring unparalleled safety with no risk of combustion or explosion;
Compact and lightweight, requiring zero maintenance, while promising an impressive lifespan that stands the test of time;
Offers versatility in operation with manual, electric, or remote control options available to suit every need;
The operating mechanism is intricately sealed at the base of the switch box, providing effective protection against outdoor environmental corrosion;
Features a novel, simplistic design with an innovative restless mechanism that assures reliable dynamic performance, a compact form, and an extraordinary 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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