| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the remarkable ZW32-12 outdoor high voltage vacuum circuit breaker, affectionately dubbed the 'circuit breaker.' This top-tier outdoor distribution switchgear is expertly engineered to operate seamlessly at a rated voltage of 12kV with an impressive three-phase AC of 50Hz. It is the epitome of versatility, masterfully managing the interruption and connection of load current, overload current, and short circuit current within the power grid. This circuit breaker is a marvel of engineering, offering cutting-edge overload and short circuit protective capabilities, while effortlessly meeting control and measurement needs. It also excels in providing advanced remote control and monitoring functionalities. Its extensive applicability in substations, industrial facilities, and mining enterprise distribution systems ensures unrivaled control and operational excellence, making it the ideal solution for environments characterized by frequent operations.
Structural features:
With meticulous craftsmanship, this circuit breaker features a sophisticated three-phase pillar dry design;
Designed with a fully enclosed structure, it guarantees superior sealing, outstanding moisture resistance, and anti-condensation properties, rendering it the optimal choice for high-temperature and humid environments;
Utilizes cutting-edge vacuum arc extinguishing technology to ensure exceptional insulation reliability;
Provides impeccable opening and closing performance, guaranteeing safety with zero risk of combustion or explosion;
Notably compact and lightweight, it requires no maintenance and offers a remarkable service life;
Offers operational versatility with manual, electric, or remote control options available;
The operating mechanism is expertly sealed at the base of the switch box, effectively protecting against corrosive outdoor environments;
Featuring an innovative, minimalist design, it incorporates a restless mechanism that assures reliable dynamic performance, a compact form, and an astonishing 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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