| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, fondly called the 'circuit breaker.' This exceptional piece of outdoor distribution switchgear is designed to operate with finesse at a rated voltage of 12kV, powered by a robust three-phase AC of 50Hz. This remarkable circuit breaker excels in handling the interruption and connection of load current, overload current, and short circuit current within the power grid. It embodies cutting-edge overload and short circuit protective capabilities, seamlessly meeting control and measurement specifications while offering advanced remote control and monitoring functionalities. This versatile circuit breaker finds its expansive use in substations, dynamic industrial settings, and mining enterprise distribution systems, delivering unmatched control and operation—perfectly suited for environments requiring frequent operations.
Structural features:
Designed with precision, the circuit breaker features a sophisticated three-phase pillar dry design;
Engineered with a completely enclosed structure, it provides superior sealing, exceptional moisture resistance, and anti-condensation properties, making it an ideal choice for high-temperature and humid environments;
Utilizes cutting-edge vacuum arc extinguishing technology to ensure outstanding insulation reliability;
Achieves impeccable opening and closing performance, guaranteeing safety with no risk of combustion or explosion;
Compact and lightweight, this circuit breaker requires no maintenance and promises an impressive lifespan;
Offers versatility in operation with manual, electric, or remote control options available;
The operating mechanism is meticulously sealed at the base of the switch box, providing robust protection against outdoor environmental corrosion;
Showcases an innovative, simplistic design with a restless mechanism that ensures reliable dynamic performance, a compact form, and an impressive 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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