| 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. Designed with a rated voltage of 12 kV and accommodating three-phase AC 50 Hz, this circuit breaker is your ultimate solution to adeptly manage the load current, overload current, and short circuit current on power lines. It offers unrivaled overload and short circuit protection, flawlessly integrating with control and measurement standards. Equipped with advanced remote control and monitoring capabilities, it is highly favored for substation use and in industrial and mining enterprise distribution systems. Ideal for environments demanding frequent operation, this circuit breaker redefines control and operational excellence with unparalleled precision and reliability.
Structural features:
The product is characterized by a robust three-phase pillar dry structure, meticulously designed to ensure optimal performance and stability.
Thanks to its fully enclosed design, it excels in sealing, moisture-proofing, and condensation prevention, making it the perfect choice for high temperature and humid regions.
Employing cutting-edge vacuum arc extinguishing technology ensures unparalleled insulation, significantly enhancing operational safety and efficiency.
Delivers dependable opening and closing performance with zero risk of combustion or explosion, providing customers with complete peace of mind.
Compact, lightweight, and completely maintenance-free, this product promises an extended service life, maximizing value and operational efficiency.
Experience unmatched user convenience with versatile operation options - choose from manual, electric, or remote operations.
The operating mechanism is securely sealed at the bottom of the switch box, engineered to resist corrosion from prolonged outdoor exposure.
Featuring a novel, simple yet reliable design, the restless mechanism displays exceptional dynamic performance and a 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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