Customization: | Available |
---|---|
Type: | High-voltage |
Structure: | Three-column Disconnector |
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, an unparalleled solution crafted for modern outdoor distribution networks. Affectionately known as the 'circuit breaker,' this state-of-the-art switchgear is meticulously engineered to operate at a 12kV rated voltage with a robust three-phase AC at 50Hz. This sophisticated circuit breaker excels in managing the seamless interruption and reconnection of load current, overload current, and short circuit current within power grids. It offers groundbreaking overload and short circuit protective capabilities, seamlessly addressing control and measurement requirements while delivering cutting-edge remote control and monitoring functions. Its vast application spectrum covers substations, industrial sectors, and mining enterprise distribution systems, establishing it as the ultimate choice for environments demanding frequent operations. This ensures unrivaled control and efficiency, making it an indispensable asset for modern electrical infrastructures.
Structural Features:
Meticulously crafted with precision, the circuit breaker boasts a sophisticated three-phase pillar dry design;
Expertly engineered with a fully enclosed structure, it offers outstanding sealing, superior moisture resistance, and anti-condensation properties, making it ideal for high-temperature and humid environments;
Utilizes advanced vacuum arc extinguishing technology, providing exceptional insulation reliability;
Ensures flawless opening and closing performance, guaranteeing safety with zero risk of combustion or explosion;
Designed to be compact and lightweight, this refined device requires no maintenance, boasting an extraordinary lifespan;
Features versatile operation capabilities, with manual, electric, or remote control options available for ultimate convenience;
The operating mechanism is prudently sealed at the switch box's base, offering robust protection against outdoor environmental corrosion;
Showcases an innovative and streamlined design that features a restless mechanism, ensuring 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 |