| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12, an outdoor high voltage vacuum circuit breaker, fondly referred to as the 'circuit breaker.' This outstanding outdoor distribution switchgear is expertly crafted to operate seamlessly at a rated voltage of 12kV, powered by a robust three-phase AC system of 50Hz. With its exceptional versatility, this circuit breaker adeptly manages the interruption and reconnection of load current, overload current, and short circuit current within the power grid. It is equipped with cutting-edge overload and short circuit protective features, effortlessly meeting control and measurement requirements while offering sophisticated remote control and monitoring capabilities. Its wide applicability extends to substations, industrial environments, and mining enterprise distribution systems, delivering unmatched control and operational efficiency, perfect for environments with frequent operations.
Structural features:
Meticulously crafted to perfection, the circuit breaker features an innovative three-phase pillar dry design;
Expertly engineered with a fully enclosed structure, it provides superior sealing, exceptional moisture resistance, and anti-condensation properties. This makes it an ideal choice for high-temperature and humid regions;
Utilizes cutting-edge vacuum arc extinguishing technology to ensure outstanding insulation reliability;
Offers flawless opening and closing performance, guaranteeing safety with no risk of combustion or explosion;
Compact and lightweight, it requires no maintenance and promises an impressive lifespan;
Boasting versatility in operation, it offers manual, electric, or remote control options;
The operating mechanism is intricately sealed at the base of the switch box, effectively protecting against outdoor environmental corrosion;
Featuring a novel, simplistic design, it possesses a restless mechanism that ensures reliable dynamic performance, a 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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