| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12, an outstanding outdoor high voltage vacuum circuit breaker, affectionately known as the 'circuit breaker.' This exemplary piece of engineering is a masterful outdoor distribution switchgear operating at a rated voltage of 12kV, supported by a robust three-phase AC of 50Hz. This versatile circuit breaker is adept at managing the interruption and connection of load current, overload current, and short circuit current within the power grid. It possesses advanced overload and short circuit protection capabilities, flawlessly fulfilling control and measurement requirements while offering sophisticated remote control and monitoring functionalities. Widely used in substations, industrial setups, and mining enterprise distribution systems, it provides unmatched control and ideal operation for environments with frequent use.
Structural Features:
Crafted with meticulous precision, the circuit breaker boasts a three-phase pillar dry design;
Engineered with a fully enclosed structure, it provides superior sealing, exceptional moisture resistance, and anti-condensation properties, making it ideal for high-temperature and humid environments;
Employs cutting-edge vacuum arc extinguishing technology, ensuring reliable insulation performance;
Delivers impeccable opening and closing performance, ensuring safety with no risk of combustion or explosion;
Compact and lightweight, requiring no maintenance, and promises a remarkable lifespan;
Offers versatility in operation with options for manual, electric, or remote control;
The operating mechanism is expertly sealed at the base of the switch box, effectively protecting against outdoor environmental corrosion;
Exhibits a novel, simplistic design with a restless mechanism that ensures reliable dynamic performance, 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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