| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Presenting the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, fondly referred to as the 'circuit breaker,' this cutting-edge outdoor distribution switchgear is crafted to excel at a rated voltage of 12kV, supported by a formidable three-phase AC of 50Hz. This adaptable circuit breaker masterfully manages the interruption and reconnection of load, overload, and short circuit currents within the power grid. Empowered with state-of-the-art overload and short circuit protective features, it seamlessly meets control and measurement requisites, offering sophisticated remote monitoring and management capabilities. Its extensive applications span substations, industrial sectors, and mining enterprise distribution networks, delivering unmatched control and operation—perfect for environments demanding frequent operations.
Structural features:
Meticulously crafted, the circuit breaker exhibits a three-phase pillar dry design;
Designed with a fully enclosed structure, it ensures superior sealing, exceptional moisture resistance, and anti-condensation capabilities, making it the ideal choice for high-temperature and humid conditions;
Utilizes cutting-edge vacuum arc extinguishing technology for unparalleled insulation dependability;
Provides impeccable opening and closing performance, guaranteeing safety without any combustion or explosion risk;
Compact and lightweight, requires no maintenance, and guarantees an impressive operational lifespan;
Offers operation versatility with manual, electric, or remote control options;
The operating mechanism is expertly sealed at the base of the switch box, effectively guarding against environmental corrosion;
Features an innovative, simplistic design with a robust mechanism that assures reliable dynamic performance, compact form, and an exceptional 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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