| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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The ZW32-12 outdoor high voltage vacuum circuit breaker, affectionately known as the 'circuit breaker,' is a masterfully engineered outdoor distribution switchgear meticulously crafted to operate at a rated voltage of 12kV with a robust three-phase AC of 50Hz. This versatile circuit breaker is adept at skillfully managing the interruption and connection of load currents, overload currents, and short circuit currents within the power grid. It is endowed with advanced overload and short circuit protective capabilities, flawlessly fulfilling control and measurement specifications while delivering cutting-edge remote control and monitoring functionalities. Its extensive applications span substations, industrial settings, and mining enterprise distribution systems, offering unparalleled control and operation, making it the ideal choice for environments demanding frequent and reliable operations.
Structural Features:
Expertly crafted with precision, the circuit breaker showcases a three-phase pillar dry design;
Thoughtfully engineered with a fully enclosed structure, it provides exceptional sealing, superior moisture resistance, and remarkable anti-condensation properties, making it the perfect choice for high-temperature and humid regions;
Utilizes cutting-edge vacuum arc extinguishing technology, offering outstanding insulation reliability;
Ensures impeccable opening and closing performance, guaranteeing safety with no risk of combustion or explosion;
Compact and lightweight, requiring no maintenance and promising 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, effectively safeguarding against harsh outdoor environmental corrosion;
Presents a novel, simplistic design with a relentless 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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