| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, affectionately termed as the 'circuit breaker.' This cutting-edge outdoor distribution switchgear is meticulously engineered to function at a rated voltage of 12kV, featuring a robust three-phase AC operating at 50Hz. This remarkable circuit breaker adeptly manages the interruption and reconnection of load current, overload current, and short circuit current within power grids. It boasts state-of-the-art overload and short circuit protective capabilities, seamlessly addressing control and measurement requirements while providing advanced remote control and monitoring functionalities. Its extensive application range encompasses substations, industrial areas, and mining enterprise distribution systems, offering superior control and operation—perfectly suited for environments that demand frequent operations.
Structural Features:
Exquisitely crafted, the circuit breaker features a sophisticated three-phase pillar dry design;
Ingeniously engineered with a fully enclosed structure, it provides unmatched sealing, superior moisture resistance, and exceptional anti-condensation properties, making it the ideal choice for high-temperature, humid regions;
Incorporates cutting-edge vacuum arc extinguishing technology, culminating in superior insulation reliability;
Ensures flawless opening and closing performance, guaranteeing safety with zero risk of combustion or explosion;
Boasts a compact, lightweight design, requiring no maintenance, and promises a remarkable lifespan;
Offers versatile operation options—manual, electric, or remote control;
The operating mechanism is expertly sealed at the base of the switch box, delivering effective protection against outdoor environmental corrosion;
Exemplifies a novel, simplistic design featuring a restless mechanism that guarantees reliable dynamic performance, a compact form, and an astonishing service life extending 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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