| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Meet the ZW32-12 outdoor high voltage vacuum circuit breaker, a masterfully engineered outdoor distribution switchgear affectionately dubbed the 'circuit breaker.' Designed for a rated voltage of 12kV, this powerhouse operates on a robust three-phase AC of 50Hz. This multifaceted circuit breaker adeptly manages the interruption and connection of load current, overload current, and short circuit current within the power grid. Its advanced overload and short circuit protective prowess ensures it seamlessly meets control and measurement specifications, all while delivering state-of-the-art remote control and monitoring functionalities. Widely utilized in substations, industrial arenas, and mining enterprise distribution systems, it offers unrivaled control and operational excellence, ideal for environments demanding frequent operations.
Structural features:
Meticulously crafted, the circuit breaker flaunts a sophisticated three-phase pillar dry design;
Ingeniously engineered with a fully enclosed structure, it provides superior sealing, exceptional moisture resistance, and anti-condensation properties. This makes it the quintessential choice for high-temperature and humid climates;
Harnesses cutting-edge vacuum arc extinguishing technology for superior insulation reliability;
Exhibits impeccable opening and closing performance, guaranteeing safety with zero risk of combustion or explosion;
Remarkably compact and lightweight, this maintenance-free marvel assures an impressive lifespan;
Offers versatile operation with manual, electric, or remote control options;
The operating mechanism is expertly sealed at the base of the switch box, providing robust protection against outdoor environmental corrosion;
Boasts a pioneering, simplistic design with a restless mechanism that ensures dependable dynamic performance, a compact form, and a staggering 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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