| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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The ZW32-12 outdoor high voltage vacuum circuit breaker, endearingly referred to as the 'circuit breaker,' stands as a paragon of outdoor distribution switchgear impeccably crafted to function at an impressive rated voltage of 12kV, with a formidable three-phase AC of 50Hz. This adaptable circuit breaker is a master at managing the interruption and reconnection of load current, overload current, and short circuit current within the power grid. It boasts state-of-the-art overload and short circuit protective capabilities while flawlessly fulfilling control and measurement requirements, and offering advanced remote control and monitoring functionalities. Its wide-ranging application spans substations, industrial arenas, and mining enterprise distribution systems, rendering it the ultimate choice for unsurpassed control and operation, ideally suited for environments demanding frequent operations.
Structural features:
Expertly crafted with precision, this circuit breaker features a sophisticated three-phase pillar dry design;
Ingeniously engineered with a fully enclosed structure, it provides unmatched sealing, exceptional moisture resistance, and anti-condensation capabilities, making it the ideal solution for high-temperature and humidity-prone regions;
Utilizes cutting-edge vacuum arc extinguishing technology, offering remarkable insulation reliability;
Guarantees impeccable opening and closing performance, ensuring unrivaled safety with no risk of combustion or explosion;
Compact and lightweight, this circuit breaker requires no maintenance and promises an impressive lifespan;
Versatile operation is at your fingertips with manual, electric, or remote control options available;
The operating mechanism is meticulously sealed at the base of the switch box, providing robust protection against outdoor environmental corrosion;
Presents a novel, straightforward design with a restless mechanism that ensures reliable dynamic performance, a compact form, and an extraordinary 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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