| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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The ZW32-12 outdoor high voltage vacuum circuit breaker, endearingly referred to as the 'circuit breaker,' is a premier outdoor distribution switchgear, meticulously crafted to function at a rated voltage of 12kV with a powerful three-phase AC of 50Hz. This adaptable circuit breaker expertly manages 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 capacities, effortlessly aligning with control and measurement demands while offering sophisticated remote control and monitoring functionalities. Its extensive application spans substations, industrial landscapes, and mining enterprise distribution systems, providing unparalleled command and operation, making it an indispensable solution for environments with frequent operational demands.
Structural features:
Crafted with precision, the circuit breaker features an innovative three-phase pillar dry design;
Engineered with an impeccably fully enclosed structure, it provides unmatched sealing, exceptional moisture resistance, and anti-condensation capabilities, rendering it the ideal choice for high-temperature and humid areas;
Utilizes cutting-edge vacuum arc extinguishing technology, delivering exceptional insulation reliability;
Ensures seamless opening and closing performance, prioritizing safety with zero risk of combustion or explosion;
Compact and lightweight, this device requires no maintenance and offers an impressive longevity;
Boasts operational versatility with manual, electric, or remote control options to suit diverse needs;
The operating mechanism is securely sealed at the base of the switch box, effectively shielding it from outdoor environmental corrosion;
Features a novel, minimalist design with a dynamic mechanism that ensures reliable performance, a compact structure, and a remarkable 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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