| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, affectionately known as the 'circuit breaker,' this remarkable outdoor distribution switchgear is engineered to perfection, operating at a rated voltage of 12kV with a powerful three-phase AC of 50Hz. This adaptable circuit breaker is expertly designed to manage the interruption and connection of load current, overload current, and short circuit current within the power grid. It features cutting-edge overload and short circuit protection capabilities, effortlessly meeting control and measurement specifications while offering sophisticated remote control and monitoring functionalities. Its extensive applications span substations, industrial settings, and mining enterprise distribution systems, delivering unmatched control and operation, perfectly suited for environments that demand frequent operations.
Structural Features:
Exquisitely crafted with precision, this circuit breaker is characterized by its three-phase pillar dry design;
Expertly engineered with a fully enclosed structure, it provides superior sealing, exceptional moisture resistance, and anti-condensation properties, making it an ideal choice for high-temperature and humid regions;
Incorporates state-of-the-art vacuum arc extinguishing technology for outstanding insulation reliability;
Ensures impeccable opening and closing performance, offering safety with no risk of combustion or explosion;
Compact and lightweight, this circuit breaker is maintenance-free 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 effective protection against outdoor environmental corrosion;
Boasts a novel, simplistic design with a restless mechanism that ensures reliable dynamic performance, a compact form, and an extraordinary 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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