| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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The remarkable ZW32-12 outdoor high voltage vacuum circuit breaker, fondly known as the 'circuit breaker,' is a pinnacle of outdoor distribution switchgear excellence. Operating at a rated voltage of 12kV with a powerful three-phase AC of 50Hz, this adaptable circuit breaker excels in efficiently managing the interruption and connection of load current, overload current, and short circuit current within the power grid. Equipped with superior overload and short circuit protective capabilities, it effortlessly meets control and measurement requirements while offering advanced remote control and monitoring features. Its extensive application includes substations, industrial environments, and mining enterprise distribution systems, providing unmatched control and operation, making it essential for settings requiring frequent operations.
Structural features:
Crafted with meticulous precision, this circuit breaker exhibits an innovative three-phase pillar dry design;
Built with a cutting-edge fully enclosed structure, it ensures superior sealing, incredible moisture resistance, and exceptional anti-condensation properties, establishing it as the ideal choice for regions experiencing high temperatures and humidity;
Integrates state-of-the-art vacuum arc extinguishing technology, delivering outstanding insulation reliability and security;
Offers impeccable opening and closing performance, prioritizing safety with zero risk of combustion or explosion;
Compact and lightweight, this maintenance-free marvel promises a remarkable operational lifespan;
Boasts versatility in operation, offering manual, electric, or remote control options to suit varied needs;
The operating mechanism is expertly sealed at the base of the switch box, providing robust protection against the corrosive effects of outdoor environments;
Features a novel, simplistic design complemented by a resilient mechanism that guarantees 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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