| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Discover the ZW32-12 outdoor high voltage vacuum circuit breaker, affectionately referred to as the 'circuit breaker'—a remarkable piece of outdoor distribution switchgear. It is expertly engineered to function at a substantial rated voltage of 12kV, complemented by a robust three-phase AC of 50Hz. This dynamic circuit breaker excels in both the interruption and connection of load current, overload current, and short circuit current within the power grid. Renowned for its advanced overload and short circuit protection, it effortlessly meets control and measurement requirements, all while offering sophisticated remote control and monitoring capabilities. Its extensive applications encompass substations, industrial settings, and mining enterprises, offering unmatched control and operational proficiency—perfectly suited for areas demanding frequent operations.
Structural features:
This circuit breaker is meticulously crafted with a three-phase pillar dry design for maximum efficiency;
Designed with a fully enclosed structure, it provides superior sealing, exceptional moisture resistance, and anti-condensation capabilities, making it ideal for high-temperature and humid environments;
Utilizes cutting-edge vacuum arc extinguishing technology to ensure outstanding insulation reliability;
Ensures flawless opening and closing operations, guaranteeing safety with no risk of combustion or explosion;
Compact and lightweight, it requires no maintenance and promises an impressive lifespan;
Offers operational versatility with manual, electric, or remote control options;
The operating mechanism is meticulously sealed within the base of the switch box, providing effective protection against environmental corrosion;
Featuring a novel, simplistic design with a restless mechanism that assures reliable dynamic performance, a compact form, and an astonishing 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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