| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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The ZW32-12 outdoor high voltage vacuum circuit breaker, fondly referred to as the 'circuit breaker,' is a paramount outdoor distribution switchgear engineered for optimal performance at a formidable rated voltage of 12kV, complemented by a robust three-phase AC of 50Hz. This adaptable circuit breaker proficiently manages the interruption and reconnection of load current, overload current, and short circuit current within the power grid. It is lauded for its advanced overload and short circuit protective prowess, seamlessly fulfilling control and measurement specifications while providing sophisticated remote control and monitoring functionalities. Its extensive applications span substations, industrial facilities, and mining enterprise distribution systems, offering unmatched control and operation—perfectly suited for environments demanding frequent operations.
Structural features:
Crafted with impeccable precision, the circuit breaker flaunts a three-phase pillar dry design;
Meticulously engineered with a fully enclosed structure, it delivers superior sealing, exceptional moisture resistance, and anti-condensation properties, rendering it the ideal choice for high-temperature and humid regions;
Utilizes pioneering vacuum arc extinguishing technology, ensuring outstanding insulation reliability;
Offers impeccable opening and closing performance, ensuring safety with no risk of combustion or explosion;
Compact and lightweight with no maintenance required, this circuit breaker boasts an impressive lifespan;
Versatility at your fingertips—choose from manual, electric, or remote control options;
The operating mechanism is expertly sealed at the base of the switch box, effectively guarding against outdoor environmental corrosion;
Exhibits a novel, simplistic design with a restless mechanism that guarantees reliable dynamic performance, a compact form, and a remarkable 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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