| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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The ZW32-12 outdoor high voltage vacuum circuit breaker, affectionately referred to as the 'circuit breaker,' stands as a pinnacle of outdoor distribution switchgear. It is crafted to operate seamlessly at a rated voltage of 12kV, coupled with a robust three-phase AC of 50Hz. This adaptable circuit breaker excels at interrupting and connecting load current, overload current, and short circuit current within the power grid. It is endowed with cutting-edge overload and short circuit protection capabilities, effortlessly meeting control and measurement specifications. Furthermore, it offers sophisticated remote control and monitoring functionalities. Its expansive application includes substations, industrial sectors, and mining enterprises, establishing it as an ideal choice for dynamic environments demanding frequent operations.
Structural features:
Meticulously crafted, the circuit breaker features a distinctive three-phase pillar dry design;
Expertly engineered with a fully enclosed structure, it provides exceptional sealing, superb moisture resistance, and anti-condensation properties, rendering it the optimal choice for high-temperature, humid regions;
Incorporates cutting-edge vacuum arc extinguishing technology, ensuring exceptional insulation reliability;
Delivers impeccable opening and closing performance, guaranteeing safety with zero risk of combustion or explosion;
Compact and lightweight, requiring no maintenance, while promising a remarkable lifespan;
Offers versatile operation options, including manual, electric, and remote control;
The operating mechanism is meticulously secured at the base of the switch box, providing robust protection against outdoor environmental corrosion;
Exhibits an innovative, minimalistic design with a steadfast mechanism that ensures reliable dynamic performance, compactness, and an awe-inspiring 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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