| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Presenting the ZW32-12 outdoor high voltage vacuum circuit breaker—a masterfully engineered piece of technology lovingly known as the 'circuit breaker.' This exceptional outdoor distribution switchgear is meticulously designed to operate at a potent rated voltage of 12kV, with a robust three-phase AC of 50Hz. This multifaceted circuit breaker deftly 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, flawlessly fulfilling control and measurement specifications. It also delivers advanced remote control and monitoring functionalities that seamlessly integrate with modern infrastructural demands. Its expansive application across substations, industrial settings, and mining enterprise distribution systems ensures unparalleled control and operation. It is the quintessential solution for environments requiring frequent operations.
Structural features:
Expertly crafted with precision, the circuit breaker proudly displays a three-phase pillar dry design;
Meticulously engineered with a fully enclosed structure, it offers unparalleled sealing, exceptional moisture resistance, and anti-condensation properties, making it an impeccable choice for high-temperature and humid regions;
Incorporates state-of-the-art vacuum arc extinguishing technology, ensuring outstanding insulation reliability;
Provides impeccable opening and closing performance, ensuring safety with no risk of combustion or explosion;
Designed to be compact and lightweight, it requires no maintenance and guarantees an impressive lifespan;
Offers versatility in operation with manual, electric, or remote control options available;
The operating mechanism is meticulously sealed at the base of the switch box, providing effective protection against outdoor environmental corrosion;
Features a novel, simplistic design with a restless mechanism that ensures reliable dynamic performance, a compact form, and an astounding 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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