Customization: | Available |
---|---|
Type: | High-voltage |
Structure: | Three-column Disconnector |
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, the quintessential solution for modern outdoor distribution networks. Known as the 'circuit breaker,' this advanced piece of switchgear is masterfully engineered for a 12kV rated voltage and a robust three-phase AC at 50Hz. This innovative circuit breaker excels in the seamless interruption and reconnection of load currents, handling both overload and short circuit currents with remarkable precision within power grids. It boasts state-of-the-art overload and short circuit protective capabilities, effortlessly satisfying control and measurement requirements while offering sophisticated remote control and monitoring functions. Its expansive application range encompasses substations, industrial sectors, and mining enterprise distribution systems, making it the ultimate choice for environments necessitating frequent operations. This ensures superior control and efficiency, providing a vital asset for contemporary electrical infrastructures.
Structural Features:
Meticulously crafted with the highest precision, the circuit breaker boasts a refined three-phase pillar dry design;
Expertly engineered with a fully enclosed structure, it provides outstanding sealing, superior moisture resistance, and anti-condensation capabilities, making it ideal for high-temperature and humid environments;
Employing state-of-the-art vacuum arc extinguishing technology, it delivers exceptional insulation reliability;
Ensures impeccable opening and closing performance, guaranteeing safety without any risk of combustion or explosion;
Designed to be compact and lightweight, this sophisticated device requires no maintenance and boasts an impressive lifespan;
Offers versatile operation capabilities, with manual, electric, or remote control options available for ultimate convenience;
The operating mechanism is meticulously sealed at the base of the switch box, providing effective protection against outdoor environmental corrosion;
Showcasing an innovative and streamlined design featuring a restless mechanism, it ensures 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 |