| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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The ZW32-12 outdoor high voltage vacuum circuit breaker, fondly referred to as the 'circuit breaker,' stands as a pinnacle of outdoor distribution switchgear excellence. Operating efficiently at a rated voltage of 12kV, it commands a formidable three-phase AC of 50Hz. This adaptable circuit breaker is masterfully engineered to interrupt and connect load, overload, and short-circuit currents with finesse within the power grid. It is celebrated for its advanced overload and short circuit protection capacities, adeptly meeting control and measurement requirements, while offering cutting-edge remote control and monitoring features. Its extensive application stretches across substations, industrial realms, and mining enterprises, providing unmatched control and operation—making it the ideal choice for scenarios demanding frequent operations.
Structural features:
Expertly crafted with precision, the circuit breaker presents a three-phase pillar dry design, a testament to its exceptional engineering;
Ingeniously designed with a fully enclosed structure, it ensures superior sealing and remarkable resistance to moisture and condensation, rendering it the perfect option for high-temperature and humid climates;
Utilizes cutting-edge vacuum arc extinguishing technology, promising outstanding insulation reliability;
Exhibits impeccable opening and closing performance, guaranteeing safety with zero risk of combustion or explosion;
Boasting a compact and lightweight build, this maintenance-free marvel promises a commendable long-lasting lifespan;
Offers versatile operation options, including manual, electric, or remote controls, for ultimate convenience;
The operating mechanism is strategically sealed at the base of the switch box, providing effective protection against outdoor environmental corrosion;
Features an innovative, minimalist design with a robust mechanism, ensuring reliable dynamic performance, a compact form, and an extraordinary service life reaching 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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