| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, fondly referred to as the 'circuit breaker.' This exceptional outdoor distribution switchgear is expertly engineered to operate at a rated voltage of 12kV, with a formidable three-phase AC of 50Hz. This adaptable circuit breaker not only excels in the interruption and connection of load current, overload current, and short circuit current within the power grid but also embodies cutting-edge overload and short circuit protective prowess. It flawlessly meets control and measurement criteria while offering state-of-the-art remote control and monitoring capabilities. Its widespread application extends to substations, industrial environments, and mining enterprise distribution systems, where it provides unrivaled control and operation—ideal for settings necessitating frequent operations.
Structural Features:
Meticulously designed, the circuit breaker features a sophisticated three-phase pillar dry design;
Constructed with a completely sealed structure, it guarantees superior sealing, exceptional moisture resistance, and anti-condensation capabilities, making it ideally suited for high-temperature and humid environments;
Incorporates cutting-edge vacuum arc extinguishing technology, delivering unmatched insulation reliability;
Provides impeccable opening and closing performance, ensuring absolute safety with zero risk of combustion or explosion;
Compact and lightweight, it is maintenance-free and promises an extraordinary lifespan;
Offers operational versatility with manual, electric, or remote control options;
The operating mechanism is expertly sealed at the base of the switch box, providing effective protection against outdoor environmental corrosion;
Exhibits a novel, straightforward design paired with a robust mechanism that guarantees reliable dynamic performance, a compact form, and an exceptional service life reaching 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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