Customization: | Available |
---|---|
Type: | High-voltage |
Structure: | Three-column Disconnector |
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, the pinnacle of innovation for contemporary outdoor distribution networks. Affectionately referred to as the 'circuit breaker,' this state-of-the-art switchgear is meticulously designed for a 12kV rated voltage and a robust three-phase AC at 50Hz. This dynamic device excels in managing the seamless interruption and reconnection of load current, overload current, and short circuit current within power grids. It showcases groundbreaking overload and short circuit protective capabilities, effortlessly fulfilling control and measurement demands while offering advanced remote control and monitoring functionalities. Its extensive application range spans substations, industrial sectors, and mining enterprise distribution systems, making it the go-to choice for environments demanding frequent operations. This ensures unparalleled control and efficiency, rendering it an indispensable asset for contemporary 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 delivers superior sealing, exceptional moisture resistance, and anti-condensation characteristics, ideal for high-temperature and humid environments;
Incorporates cutting-edge vacuum arc extinguishing technology, ensuring exceptional insulation reliability;
Guarantees impeccable opening and closing performance, ensuring safety without any risk of combustion or explosion;
Architected to be compact and lightweight, this sophisticated device is maintenance-free, boasting an impressive lifespan;
Versatile operation capabilities with manual, electric, or remote control options available for utmost convenience;
The operating mechanism is securely sealed at the switch box's base, providing effective protection against outdoor environmental corrosion;
Displays an innovative and simplified design featuring a restless mechanism, ensuring reliable dynamic performance, a compact structure, and an astonishing 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 |