| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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The ZW32-12 outdoor high voltage vacuum circuit breaker, affectionately recognized as the 'circuit breaker,' is an outstanding piece of outdoor distribution switchgear. Engineered to function at a rated voltage of 12kV, it features a formidable three-phase AC of 50Hz. This adaptable circuit breaker masterfully manages the interruption and reconnection of load current, overload current, and short circuit current within the power grid. It is equipped with cutting-edge overload and short circuit protective capabilities, adeptly meeting control and measurement requirements while offering sophisticated remote control and monitoring functionalities. Its wide-ranging application spans substations, industrial settings, and mining enterprises' distribution systems, providing unrivaled control and operation. This makes it ideal for environments demanding frequent operations.
Structural features:
Crafted with exactitude, the circuit breaker features a three-phase pillar dry design;
Designed with a fully enclosed structure, it ensures superior sealing, remarkable moisture resistance, and impressive anti-condensation properties. This makes it the ideal choice for high-temperature and humid regions;
Incorporates cutting-edge vacuum arc extinguishing technology, offering exceptional insulation reliability;
Provides impeccable opening and closing performance, guaranteeing safety with no risk of combustion or explosion;
Compact, lightweight, maintenance-free, and promises an exceptional lifespan;
Offers versatility in operation with manual, electric, or remote control options available;
The operating mechanism is meticulously sealed at the base of the switch box, effectively protecting against environmental corrosion from the outdoors;
Boasts a novel, minimalist design with a dynamic mechanism that ensures reliable performance, compactness, and an impressive 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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