| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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The ZW32-12 outdoor high voltage vacuum circuit breaker, fondly dubbed the 'circuit breaker,' stands as a premier example of outdoor distribution switchgear, expertly crafted to operate at a sophisticated rated voltage of 12kV with resilient three-phase AC of 50Hz. This remarkably adaptable circuit breaker demonstrates exceptional prowess in managing the interruption and connection of load current, overload current, and short circuit current within the power grid. It features cutting-edge overload and short circuit protective capabilities, flawlessly meeting control and measurement standards while offering advanced remote control and monitoring functionalities. Its extensive application stretches across substations, industrial settings, and mining enterprise distribution systems, providing unmatched control and operation - the perfect choice for demanding environments with frequent operations.
Structural features:
Designed with meticulous precision, the circuit breaker presents a three-phase pillar dry design;
Built with a fully enclosed structure, it ensures superior sealing, exceptional moisture resistance, and anti-condensation properties, making it the ideal choice for high-temperature and humid regions;
Incorporates cutting-edge vacuum arc extinguishing technology for extraordinary insulation reliability;
Ensures impeccable opening and closing performance, guaranteeing safety with no risk of combustion or explosion;
Boasts a compact, lightweight design, requiring zero maintenance, and promises a remarkable lifespan;
Offers diverse operational modes - manual, electric, or remote control options available;
The operating mechanism is expertly sealed at the base of the switch box, effectively protecting against outdoor environmental corrosion;
Features an innovative, simplistic design with a robust mechanism that ensures dependable dynamic performance, compact form, and an impressive 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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