| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
Still deciding? Get samples of $ !
Request Sample
|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Behold the ZW32-12 outdoor high voltage vacuum circuit breaker – a stellar innovation affectionately termed the 'circuit breaker'. This exemplary piece of outdoor distribution switchgear is engineered for a rated voltage of 12kV, thriving with a robust three-phase AC of 50Hz. Designed for versatility, this circuit breaker excels at managing the interruption and reconnection of load current, overload current, and short circuit current within power grids. It features advanced overload and short circuit protective capabilities, fulfilling modern control and measurement specifications with elegance. The sophisticated remote control and monitoring functionalities make it an indispensable asset across substations, industrial environments, and mining enterprise distribution systems. This circuit breaker is the epitome of control and operation, thriving even in settings with frequent operations.
Structural Features:
Designed with meticulous precision, the circuit breaker boasts a three-phase pillar dry design;
Skillfully engineered with a fully enclosed structure, it provides outstanding sealing, exceptional moisture resistance, and anti-condensation properties, making it the optimal choice for high-temperature and humid regions;
Utilizes cutting-edge vacuum arc extinguishing technology, ensuring unparalleled insulation reliability;
Exhibits exceptional opening and closing performance, guaranteeing safety with no risk of combustion or explosion;
Compact and lightweight, this circuit breaker requires no maintenance and promises a remarkable lifespan;
Offers operational versatility with manual, electric, or remote control options;
The operating mechanism is expertly sealed at the base of the switch box, providing robust protection against outdoor environmental corrosion;
Displays a novel, simplistic design featuring 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}