| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the state-of-the-art ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, the epitome of modern solutions for outdoor distribution networks. Known affectionately as the 'circuit breaker,' this advanced switchgear is meticulously crafted for a 12kV rated voltage with a robust three-phase AC at 50Hz. This versatile circuit breaker excels in the interruption and reconnection of load current, overload currents, and short circuit currents within power grids. It boasts cutting-edge overload and short circuit protective capabilities, flawlessly meeting control and measurement needs while providing sophisticated remote control and monitoring functions. With an extensive application range that spans substations, industrial sectors, and mining enterprise distribution systems, it stands as the ultimate choice for environments demanding frequent operations, ensuring unparalleled control and efficiency.
Structural Features:
Meticulously crafted, the circuit breaker boasts a refined three-phase pillar dry design, ensuring seamless operation and durability;
Expertly engineered with a fully enclosed structure, it offers outstanding sealing capabilities, exceptional moisture resistance, and anti-condensation attributes, making it ideal for high-temperature and humid environments;
Utilizes cutting-edge vacuum arc extinguishing technology, providing exceptional insulation reliability and safety;
Guarantees impeccable opening and closing performance, ensuring safety with zero risk of combustion or explosion;
Designed to be compact and lightweight, it requires no maintenance while boasting an impressive lifespan;
Offers versatile operation with options for manual, electric, or remote control, catering to diverse user needs;
The operating mechanism is meticulously sealed at the switch box's base, effectively shielding against outdoor environmental corrosion;
Showcases an innovative and simplified design featuring a restless mechanism, guaranteeing reliable dynamic performance, a compact structure, and an impressive 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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