| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, an epitome of modern innovation for contemporary outdoor distribution networks. Fondly known as the 'circuit breaker,' this state-of-the-art switchgear is meticulously engineered for a robust 12kV rated voltage and a durable three-phase AC at 50Hz. This versatile circuit breaker excels in managing load current, overload current, and short circuit current within power grids. It showcases advanced overload and short circuit protective capabilities, seamlessly addressing control and measurement demands while offering sophisticated remote control and monitoring functions. Its broad application range spans substations, industrial sectors, and mining enterprise distribution systems, proving it to be the ultimate choice for environments requiring frequent operations, delivering unparalleled control and efficiency.
Structural Features:
Meticulously crafted, the circuit breaker boasts a finely honed three-phase pillar dry design;
Expertly engineered with a fully enclosed structure, it delivers exceptional sealing, superior moisture resistance, and anti-condensation properties, making it ideal for high-temperature and humid climates;
Employs cutting-edge vacuum arc extinguishing technology, ensuring superior insulation reliability;
Guarantees flawless opening and closing performance, ensuring safety without any risk of combustion or explosion;
Designed to be compact and lightweight, offering a maintenance-free experience with an impressive lifespan;
Features versatile operation options, including manual, electric, or remote control;
The operating mechanism is meticulously sealed at the switch box's base, providing effective protection against environmental corrosion;
Showcasing an innovative and streamlined design with a restless mechanism, it ensures reliable dynamic performance, a compact form, and an astounding 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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