| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, often celebrated as the 'circuit breaker.' This remarkable piece of outdoor distribution switchgear is meticulously engineered to function at a rated voltage of 12kV with a formidable three-phase AC of 50Hz. Its dynamic versatility allows it to expertly manage the interruption and reconnection of load current, overload current, and the formidable short circuit current within the power grid. This circuit breaker excels with its cutting-edge protective capabilities against overloads and short circuits, seamlessly meeting all control and measurement requirements. It offers advanced remote control and monitoring features, proving indispensable in substations, industrial applications, and mining enterprise distribution systems. Ideal for environments demanding frequent operations, it ensures matchless control and operational excellence.
Structural features:
Crafted with meticulous precision, this circuit breaker features a three-phase pillar dry design, exemplifying fine engineering.
Expertly engineered with a fully enclosed structure, it guarantees superior sealing, remarkable moisture resilience, and anti-condensation capabilities, making it an impeccable choice for high-temperature and humid conditions.
Utilizes cutting-edge vacuum arc extinguishing technology, ensuring exceptional insulation reliability and performance.
Offers impeccable opening and closing functions, ensuring safety with absolutely no risk of combustion or explosion.
Compact and lightweight, this circuit breaker requires no maintenance while promising an impressive lifespan.
Allows versatile operation with manual, electric, or remote control options to suit various needs.
The operating mechanism is expertly sealed at the switch box's base, providing robust protection against environmental corrosion.
Features a novel, simple design with a restless mechanism that guarantees dependable dynamic performance, a compact form, and an extraordinary 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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