| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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The ZW32-12 outdoor high voltage vacuum circuit breaker, known affectionately as the 'circuit breaker,' stands as a paragon of outdoor distribution switchgear. It operates seamlessly at a rated voltage of 12kV, with a resilient three-phase AC of 50Hz. This multifunctional circuit breaker expertly manages the interruption and connection of load current, overload current, and short circuit current in the power grid. It features cutting-edge overload and short circuit protective capabilities, expertly meeting control and measurement requirements while offering advanced remote control and monitoring functionalities. Its extensive application encompasses substations, industrial environments, and mining enterprise distribution systems, offering unmatched control and operation—ideal for settings with frequent operational demands.
Structural features:
Crafted with precision, the circuit breaker features a three-phase pillar dry design, ensuring optimal performance;
Engineered with an all-encompassing enclosed structure, it provides exceptional sealing, superior moisture resistance, and anti-condensation properties, making it the optimal choice for high-temperature and humid regions;
Incorporates cutting-edge vacuum arc extinguishing technology, guaranteeing excellent insulation reliability;
Offers impeccable opening and closing performance, ensuring safety with no risk of combustion or explosion, making it a reliable choice for your operations;
Designed to be compact, lightweight, maintenance-free, and promises a remarkable lifespan, combining efficiency and durability;
Provides operational versatility with manual, electric, or remote control options, adapting effortlessly to your needs;
The operating mechanism is meticulously sealed at the base of the switch box, offering robust protection against outdoor environmental corrosion, securing long-term reliability;
Exhibits an innovative, simplistic design with a dynamic mechanism that ensures reliable performance, compact form, and an extraordinary service life of up to 10,000 cycles, making it a long-lasting investment.
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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