| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, affectionately dubbed the 'circuit breaker,' a remarkable piece of outdoor distribution switchgear. Specifically engineered for a rated voltage of 12kV with a formidable three-phase AC of 50Hz, this versatile and innovative circuit breaker excels in managing the interruption and connection of load, overload, and short circuit currents within the power grid. It proudly features advanced overload and short circuit protective capabilities while meeting control and measurement requirements with finesse. Enjoy sophisticated remote control and monitoring features, ensuring it is the perfect choice for substations, industrial sites, and mining enterprise distribution systems. It offers unparalleled control and operation, precisely crafted for environments demanding frequent operations.
Structural features:
Expertly crafted with precision, this circuit breaker boasts a three-phase pillar dry design;
Engineered with a fully enclosed structure, it provides exceptional sealing, superior moisture resistance, and anti-condensation properties, rendering it an impeccable choice for high-temperature and humid regions;
Utilizes state-of-the-art vacuum arc extinguishing technology, guaranteeing outstanding insulation reliability;
Ensures flawless opening and closing performance, eliminating any risk of combustion or explosion to ensure utmost safety;
Remarkably compact and lightweight, it requires no maintenance and promises a remarkable lifespan;
Offers versatility in operation with manual, electric, or remote control options to suit diverse needs;
The operating mechanism is intricately sealed at the base of the switch box, providing robust protection against outdoor environmental corrosion;
Showcases a novel, simplistic design with a restless mechanism that ensures reliable dynamic performance, maintaining a compact form and an astounding 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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