| 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,' is a remarkable piece of outdoor distribution switchgear. It is meticulously engineered 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 is equipped with cutting-edge overload and short circuit protective abilities, effortlessly meeting control and measurement standards while offering advanced remote control and monitoring features. Its extensive application includes usage in substations, industrial environments, and mining enterprise distribution systems, providing unmatched control and operation, making it ideal for settings requiring frequent operations.
Structural features:
With precision craftsmanship, the circuit breaker features a three-phase pillar dry design, exuding quality and durability;
Designed with a fully enclosed structure, it excels in superior sealing, exceptional moisture resistance, and anti-condensation properties, making it an impeccable choice for high-temperature and humid regions;
Utilizes cutting-edge vacuum arc extinguishing technology, ensuring exceptional insulation reliability;
Offers impeccable opening and closing performance, guaranteeing safety without any risk of combustion or explosion;
Compact, lightweight, requiring no maintenance, and offers an impressive lifespan;
Flexible in operation with manual, electric, or remote control options available;
The operating mechanism is thoughtfully sealed at the base of the switch box, effectively protecting against outdoor environmental corrosion;
Exhibits a novel, simplified design with a restless mechanism that ensures reliable dynamic performance, a compact form, and boasts 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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