| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, a groundbreaking solution tailored for modern outdoor distribution networks. Affectionately dubbed the 'circuit breaker,' this sophisticated switchgear is crafted for a 12kV rated voltage, thriving with a robust three-phase AC at 50Hz. This powerhouse device excels in handling the interruption and reconnection of load current, overload current, and short circuit current within power grids. It boasts advanced overload and short circuit protection capabilities, adeptly fulfilling control and measurement requirements while offering state-of-the-art remote control and monitoring functionalities. Its expansive application spectrum covers substations, industrial settings, and mining enterprise distribution systems. This makes it the perfect choice for environments that demand frequent operations, delivering unparalleled control and efficiency to meet the most stringent demands.
Structural Features:
Meticulously crafted, the circuit breaker features an exquisite three-phase pillar dry design;
Expertly engineered with a fully enclosed structure, it offers outstanding sealing, superior moisture resistance, and anti-condensation attributes, making it ideal for challenging high-temperature and humid environments;
Incorporates state-of-the-art vacuum arc extinguishing technology, ensuring exceptional insulation reliability;
Provides flawless opening and closing performance, guaranteeing safety with zero risk of combustion or explosion;
Designed to be compact and lightweight, it is engineered for a maintenance-free life with an exceptionally extended lifespan;
Features versatile operation, with options for manual, electric, or remote control;
The operating mechanism is carefully sealed at the switch box's base, providing effective protection against outdoor environmental corrosion;
Presents an innovative and simplified design with a restless mechanism, ensuring reliable dynamic performance, a compact structure, and an impressive service life reaching 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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