| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Behold the ZW32-12, an outdoor high voltage vacuum circuit breaker, esteemed affectionately as the 'circuit breaker.' This remarkable piece of outdoor distribution switchgear operates at an impressive rated voltage of 12kV and is fortified with a robust three-phase AC of 50Hz. Designed with versatility in mind, this circuit breaker masterfully manages the interruption and reconnection of load currents, overload currents, and short circuit currents within the power grid. It stands as a paragon of advanced overload and short circuit protection, seamlessly meeting control and measurement demands while providing sophisticated remote control and monitoring capabilities. Ideal for a wide array of applications, its deployment spans substations, industrial facilities, and mining enterprise distribution systems, delivering incomparable control and operational excellence even in environments demanding frequent operations.
Structural features:
Crafted with unrivaled precision, the circuit breaker exhibits a flawless three-phase pillar dry design;
Designed with a cutting-edge fully enclosed structure, it offers unrivaled sealing, exceptional moisture resistance, and superior anti-condensation attributes, making it the ultimate choice for high-temperature and high-humidity regions;
Incorporates state-of-the-art vacuum arc extinguishing technology, ensuring unparalleled insulation reliability;
Achieves impeccable opening and closing performance, offering unmatched safety with no risk of combustion or explosion;
Featuring a compact and lightweight design, this circuit breaker requires zero maintenance and promises an impressive longevity;
Offers unparalleled versatility in operation 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 environmental corrosion;
Showcasing a novel, minimalist design, this product features a restless mechanism that ensures reliable dynamic performance, compact architecture, and an astounding 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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