| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 (G) series, a remarkable outdoor high voltage vacuum circuit breaker. This innovative circuit breaker stands as a pillar in outdoor distribution switchgear, boasting a rated voltage of 12 kV and operating seamlessly within a three-phase AC 50 Hz system. Its prime function is the effective breaking and closing of load, overload, and short circuit currents along power lines. With enhanced overload and short circuit protection, it meets stringent control and measurement needs, offering remarkable remote control and monitoring capabilities. Its versatility makes it an indispensable choice for substations, industrial, and mining enterprise distribution systems, especially in environments necessitating frequent operations.
Distinctive Structural Features:
Featuring a robust three-phase pillar dry structure, this design ensures stability and efficiency.
Crafted with a fully enclosed structure, it provides exceptional sealing performance, superior moisture resistance, and anti-condensation capabilities, making it ideal for high temperature and humid areas.
Employs vacuum arc extinguishing technology for dependable insulation, ensuring safety and performance.
Designed with reliable opening and closing performance, this product eliminates the risks of combustion and explosion, ensuring operational safety.
Featuring a compact, lightweight design, it offers maintenance-free operation and an extended service life.
Flexibility in operation is achieved with options for manual, electrical, or remote control.
The operating mechanism is securely sealed at the base of the switch box, effectively safeguarding against corrosion from prolonged outdoor exposure.
The innovative restless mechanism showcases a novel design, simplicity in structure, reliable dynamic performance, and compact size, with an impressive service life reaching up to 10,000 operations.
|
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 |
|||
|
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 |
|||
|
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 |
|||
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