| 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 an exceptional outdoor distribution switchgear. It's engineered to operate effortlessly at a rated voltage of 12kV, supported by a robust three-phase AC at 50Hz. This adaptable circuit breaker masterfully manages the interruption and connection of load current, overload current, and short circuit current within the power grid with precision. It features state-of-the-art overload and short circuit protective capabilities, smoothly meeting control and measurement requirements while offering advanced remote control and monitoring functions. Its extensive application spans substations, industrial environments, and mining enterprise distribution systems, delivering unrivaled control and operation, making it ideal for settings with frequent operations.
Structural features:
Crafted with meticulous precision, the circuit breaker boasts a three-phase pillar dry design, showcasing impeccable craftsmanship;
Engineered with a fully enclosed structure, it provides superior sealing, exceptional moisture resistance, and remarkable anti-condensation capabilities, making it the ideal choice for high-temperature and humid regions;
Incorporates cutting-edge vacuum arc extinguishing technology, ensuring outstanding insulation reliability;
Excels in delivering flawless opening and closing performance, guaranteeing safety with zero risk of combustion or explosion;
Compact and lightweight, requiring no maintenance, it promises an impressive lifespan, ensuring longevity and reliability;
Offers versatility in operation with manual, electric, or remote control options available, catering to diverse needs;
The operating mechanism is meticulously sealed at the base of the switch box, providing robust protection against outdoor environmental corrosion;
Showcases 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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