| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Meet the ZW32-12 outdoor high voltage vacuum circuit breaker, fondly termed the 'circuit breaker', which stands as a pinnacle of modern outdoor distribution switchgear. This remarkable device is expertly designed to operate at a rated voltage of 12kV and a sturdy three-phase AC of 50Hz. Demonstrating unparalleled versatility, this circuit breaker adeptly 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 meeting control and measurement requirements while offering sophisticated remote control and monitoring functionalities. Its extensive application range covers substations, industrial environments, and mining enterprise distribution systems, delivering unmatched control and operational excellence - an ideal solution for settings demanding frequent operations.
Structural features:
Expertly crafted with precision, this circuit breaker boasts a three-phase pillar dry design;
Skillfully engineered with a fully enclosed structure, it provides superior sealing, extraordinary moisture resistance, and anti-condensation capabilities, making it the ultimate choice for high-temperature and humid environments;
Incorporates cutting-edge vacuum arc extinguishing technology for exceptional insulation reliability;
Provides impeccable opening and closing performance, ensuring safety with a zero-risk factor for combustion or explosion;
Compact and lightweight, this circuit breaker is maintenance-free and guarantees a remarkable lifespan;
Operational versatility with options for manual, electric, or remote control;
The operating mechanism is diligently sealed at the base of the switch box, offering robust protection against outdoor environmental corrosion;
Features an innovative, minimalistic design with an unwavering 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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