| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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The ZW32-12 outdoor high voltage vacuum circuit breaker, fondly referred to as the 'circuit breaker,' stands as a testament to cutting-edge outdoor distribution switchgear technology. It is meticulously engineered to function at a rated voltage of 12kV, complemented by a robust 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 any power grid. Featuring advanced overload and short circuit protection, it seamlessly fulfills control and measurement demands while offering sophisticated remote control and monitoring capabilities. Its extensive applications cover substations, industrial landscapes, and mining enterprise distribution systems, ensuring unmatched control and operation, particularly in environments characterized by frequent operations.
Structural Features:
Crafted with precision, the circuit breaker is designed with a three-phase pillar dry configuration, embodying excellence and reliability;
Engineered with a fully enclosed structure, it excels in sealing and boasts exceptional moisture resistance and anti-condensation properties, making it the quintessential choice for high-temperature and humid environments;
Utilizes cutting-edge vacuum arc extinguishing technology that guarantees unparalleled insulation reliability;
Offers impeccable opening and closing performance, ensuring safety with no risk of combustion or explosion, setting a new standard for safety;
Compact, lightweight, and requiring no maintenance, it promises a remarkable lifespan, embodying convenience and durability;
Offers multiple operational modes including manual, electric, or remote control to suit diverse needs;
The operating mechanism is thoroughly sealed at the base of the switch box, providing formidable protection against outdoor environmental corrosion;
Boasts a novel, simplistic design equipped with a relentless 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 |
|||
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