| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
Still deciding? Get samples of US$ 800/Piece
Request Sample
|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
The ZW32-12 outdoor high voltage vacuum circuit breaker, fondly nicknamed the 'circuit breaker,' is a pinnacle of outdoor distribution switchgear excellence. It is designed to operate seamlessly at a rated voltage of 12kV with its robust three-phase AC of 50Hz. This adaptable circuit breaker adeptly manages the interruption and reconnection of load current, overload current, and short circuit current within the power grid. It features cutting-edge overload and short circuit protection, perfectly meeting control and measurement needs while delivering advanced capabilities for remote control and monitoring. Its widespread application includes substations, industrial setups, and mining enterprise distribution systems, offering unparalleled control and operation—perfectly suited for environments with frequent switching operations.
Structural features:
Crafted with precision, this circuit breaker proudly displays a three-phase pillar dry design;
Equipped with a fully enclosed structure, it provides superior sealing, excellent moisture resistance, and effective anti-condensation properties, making it an ideal selection for high-temperature and humid regions;
Incorporates cutting-edge vacuum arc extinguishing technology, ensuring exceptional insulation reliability;
Exhibits impeccable opening and closing performance, maintaining safety without any risk of combustion or explosion;
Compact, lightweight, requiring no maintenance, and guarantees an impressive operational lifespan;
Offers versatile operation with manual, electric, or remote control options available;
The operating mechanism is meticulously sealed at the switch box's base, providing robust protection against outdoor environmental corrosion;
Features a groundbreaking, simplistic design with a restless mechanism that ensures 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 |
|||
){kind=link}