| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, fondly known as the 'circuit breaker.' This exemplary piece of outdoor distribution switchgear is engineered to operate seamlessly at a rated voltage of 12kV within a robust three-phase AC system of 50Hz. This masterful circuit breaker excels in the interruption and connection of load current, overload current, and short circuit current across the power grid. It features advanced overload and short circuit protective capabilities while adeptly fulfilling control and measurement requirements. Additionally, it offers sophisticated remote control and monitoring functionalities. Widely applied in substations, industrial settings, and mining enterprise distribution systems, this circuit breaker provides unrivaled control and operational excellence, making it the perfect choice for environments where frequent operations are demanded.
Structural features:
Crafted with unmatched precision, the circuit breaker flaunts a three-phase pillar dry design;
Engineered with a fully enclosed structure, this circuit breaker presents superior sealing and exceptional moisture resistance, along with anti-condensation properties, making it an impeccable choice for high-temperature and humid environments;
Incorporates cutting-edge vacuum arc extinguishing technology, ensuring outstanding insulation reliability;
Guarantees flawless opening and closing performance, delivering absolute safety with no combustion or explosion risks;
Designed to be compact and lightweight, requiring no maintenance, and promising a remarkable lifespan;
Offers versatile operation modes - whether manual, electric, or remote control options are desired;
The operating mechanism is meticulously sealed at the base of the switch box, providing effective protection against the challenges of outdoor environmental corrosion;
Presents an innovative, simplistic design with a restless mechanism, ensuring exceptional dynamic performance, compact form, 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 |
|||
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