Customization: | Available |
---|---|
Type: | High-voltage |
Structure: | Three-column Disconnector |
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, an epitome of excellence in contemporary outdoor distribution networks. Endearingly referred to as the 'circuit breaker,' this state-of-the-art switchgear is meticulously designed for a robust 12kV rated voltage and a steadfast three-phase AC at 50Hz. This groundbreaking circuit breaker excels in managing the seamless interruption and reconnection of load current, overload current, and short circuit current within power grids. It boasts unparalleled overload and short circuit protective capabilities, effortlessly meeting control and measurement needs while offering advanced remote control and monitoring functions. Its extensive application range spans substations, industrial sectors, and mining enterprise distribution systems, making it the ultimate choice for environments requiring frequent operations. This ensures exceptional control and efficiency, providing an indispensable asset for modern electrical infrastructures.
Structural Features:
Meticulously crafted with utmost precision, the circuit breaker features a refined three-phase pillar dry design;
Expertly engineered with a fully enclosed structure, it provides outstanding sealing, exceptional moisture resistance, and superior anti-condensation attributes, perfect for high-temperature and humid environments;
Utilizes cutting-edge vacuum arc extinguishing technology, offering remarkable insulation reliability;
Ensures impeccable opening and closing performance, guaranteeing safety with zero risk of combustion or explosion;
Designed to be compact and lightweight, this sophisticated device requires no maintenance and boasts an impressive lifespan;
Features versatile operation capabilities, with manual, electric, or remote control options available for utmost convenience;
The operating mechanism is carefully sealed at the switch box's base, effectively shielding against outdoor environmental corrosion;
Showcases an innovative and streamlined design featuring a restless mechanism, ensuring reliable dynamic performance, a compact structure, and an impressive service life reaching an astounding 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 |