| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, affectionately revered as the 'circuit breaker.' This extraordinary outdoor distribution switchgear is meticulously crafted to operate at a rated voltage of 12kV, harmonizing seamlessly with a robust three-phase AC of 50Hz. This versatile masterpiece skillfully orchestrates the interruption and reconnection of load current, deftly manages overload current, and confidently handles short circuit current within the power grid. Boasting cutting-edge overload and short circuit protective capabilities, it flawlessly fulfills control and measurement specifications while offering sophisticated remote control and monitoring functionalities. Its widespread utilization spans substations, industrial settings, and mining enterprise distribution systems, delivering unparalleled control and operation, making it the quintessential choice for environments that demand frequent operations.
Structural features:
Crafted with meticulous precision, this circuit breaker boasts a three-phase pillar dry design;
Engineered with a fully enclosed structure, it provides superior sealing, exceptional moisture resistance, and outstanding anti-condensation properties, making it the ideal choice for high-temperature and humid regions;
Harnesses state-of-the-art vacuum arc extinguishing technology, ensuring exceptional insulation reliability;
Delivers impeccable opening and closing performance, guaranteeing safety with no risk of combustion or explosion;
Boasts a compact, lightweight design, requiring zero maintenance, and promises a remarkable lifespan;
Offers versatility in operation with manual, electric, or remote control options available;
The operational mechanism is meticulously sealed at the base of the switch box, providing effective protection against outdoor environmental corrosion;
Features a novel, streamlined design with a restless mechanism ensuring reliable dynamic performance, compact form, and an incredible 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 |
|||
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