| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
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The ZW32-12 (G) series outdoor high voltage vacuum circuit breaker, affectionately known as the "circuit breaker," stands as a premier outdoor distribution switchgear. Engineered with a rated voltage of 12 kV and accommodating three-phase AC 50 Hz, this circuit breaker is your go-to solution for expertly managing the load current, overload current, and short circuit current on power lines. It offers unparalleled overload and short circuit protection, seamlessly aligning with control and measurement standards. Not only does it boast remote control and monitoring capabilities, but it is also favored for substation use and industrial and mining enterprise distribution systems. Ideal for environments demanding frequent operation, this circuit breaker redefines control and operational excellence.
Structural features:
The product features a robust three-phase pillar dry structure, designed for optimal performance.
With its fully enclosed design, it excels in sealing, moisture-proofing, and condensation prevention, making it perfect for high temperature and humid regions.
Utilizing vacuum arc extinguishing technology ensures reliable insulation, enhancing operational safety.
Offers reliable opening and closing performance with no risk of combustion or explosion, providing peace of mind.
Compact, lightweight, and maintenance-free, this product promises a long service life, maximizing value and efficiency.
Experience versatile operation options - manual, electric, or remote - for unmatched user convenience.
The operating mechanism, securely sealed at the bottom of the switch box, is designed to resist corrosion from prolonged outdoor exposure.
Featuring a novel, simple yet reliable design, the restless mechanism boasts exceptional dynamic performance and compact size, with a service life reaching up to 10,000 cycles.
|
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 |
|||
|
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 |
|||
|
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 |
|||
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