| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Presenting the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker: your premier choice for modern outdoor distribution networks. Affectionately termed as the 'circuit breaker,' this state-of-the-art switchgear is meticulously designed to operate at a 12kV rated voltage while supporting a robust three-phase AC at 50Hz. This versatile circuit breaker excels in managing the disconnection and reconnection of load current, overload current, and short circuit current within power grids. With its leading-edge overload and short circuit protection, it adeptly fulfills control and measurement needs, boasting advanced remote control and monitoring capabilities. Its broad spectrum of applications includes substations, industrial settings, and mining enterprise distribution systems, rendering it the preferred solution for environments with frequent operational demands, ensuring exceptional control and unparalleled efficiency.
Structural Features:
Crafted with precision, the circuit breaker showcases a sophisticated three-phase pillar dry design;
Ingeniously constructed with a completely sealed structure, it offers superior sealing, outstanding moisture resistance, and anti-condensation properties, making it perfect for high-temperature and humid conditions;
Employs cutting-edge vacuum arc extinguishing technology, delivering exceptional insulation dependability;
Guarantees flawless opening and closing functionality, ensuring safety with zero risk of combustion or explosion;
Innovatively designed to be compact and lightweight, it requires no maintenance and boasts an extraordinary lifespan;
Offers versatile operation with options for manual, electric, or remote control;
The operating mechanism is meticulously sealed at the switch box's base, providing effective protection against outdoor environmental corrosion;
Features an innovative and streamlined design with a restless mechanism, ensuring reliable dynamic performance, a compact structure, 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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