| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12, an outdoor high voltage vacuum circuit breaker, fondly referred to as the 'circuit breaker.' This outstanding piece of equipment serves as a model of excellence among outdoor distribution switchgear, operating at an impressive rated voltage of 12kV with a sturdy three-phase AC of 50Hz. This adaptable circuit breaker masterfully 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 capabilities, effortlessly meeting control and measurement demands while offering sophisticated remote control and monitoring functionalities. Its extensive application ranges from substations to industrial environments and mining enterprises' distribution systems, providing unmatched control and operation—perfectly suited for environments with frequent operations.
Structural features:
Designed with meticulous precision, the circuit breaker boasts a three-phase pillar dry construction;
Built with a fully enclosed structure, it offers excellent sealing, remarkable moisture resistance, and anti-condensation features, making it ideal for high-temperature and humid areas;
Utilizes cutting-edge vacuum arc extinguishing technology for superior insulation reliability;
Ensures flawless opening and closing performance, providing safety with no risk of combustion or explosion;
Compact, lightweight, maintenance-free, and offers an impressive lifespan;
Offers operational versatility with manual, electric, or remote control options;
The operating mechanism is expertly sealed at the base of the switch box, effectively protecting against outdoor environmental corrosion;
Features an innovative, simple design with a robust mechanism that guarantees reliable dynamic performance, compactness, and an astonishing 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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