| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, an essential component affectionately dubbed the 'circuit breaker'. This masterpiece of outdoor distribution switchgear is engineered to function at a remarkable rated voltage of 12kV, paired with a formidable three-phase AC of 50Hz. Its versatility is unmatched, expertly managing the interruption and connection of load current, overload current, and short circuit current within the power grid. It excels with advanced overload and short circuit protection features, seamlessly meeting control and measurement needs while offering cutting-edge remote control and monitoring capabilities. Widely employed across substations, industrial environments, and mining distribution systems, it delivers unparalleled control and operation, making it the ideal choice for settings that demand frequent operations.
Structural features:
Precision-crafted, this circuit breaker shines with a robust three-phase pillar dry design;
Expertly engineered with a fully enclosed structure, it boasts superior sealing, exceptional moisture resistance, and anti-condensation capabilities, making it a prime candidate for high-temperature and humid zones;
Utilizes cutting-edge vacuum arc extinguishing technology, offering outstanding insulation reliability;
Ensures flawless opening and closing performance, providing safety with zero risk of combustion or explosion;
Compact and lightweight, this circuit breaker requires no maintenance and promises an extraordinary lifespan;
Operational versatility shines through with manual, electric, or remote control options available;
The operating mechanism is scrupulously sealed at the base of the switch box, providing effective protection against outdoor environmental corrosion;
Features an innovative, simplistic design with a restless mechanism for reliable dynamic performance, compact form, and an impressive 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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