| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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The ZW32-12 outdoor high voltage vacuum circuit breaker, commonly revered as the 'circuit breaker,' is an outstanding example of cutting-edge outdoor distribution switchgear. Specifically engineered to function at a rated voltage of 12kV, it manages a potent three-phase AC of 50Hz with unparalleled efficiency. This adaptable circuit breaker expertly orchestrates the interruption and reconnection of load current, overload current, and short circuit current within the dynamic power grid. It excels with advanced overload and short circuit protection capabilities, all while effortlessly meeting control and measurement needs. Further complemented by sophisticated remote control and monitoring features, its application extends broadly across substations, industrial environments, and mining enterprises, making it the ideal choice for settings demanding frequent operations.
Structural features:
With precision craftsmanship, the circuit breaker features a three-phase pillar dry design, crafted to perfection;
Equipped with a fully enclosed structure, it provides unmatched sealing, phenomenal moisture resistance, and anti-condensation properties, making it an unparalleled choice for regions characterized by high temperatures and humidity;
Boasts state-of-the-art vacuum arc extinguishing technology, ensuring exceptional insulation reliability;
Ensures impeccable opening and closing performance, prioritizing safety with no risk of combustion or explosion;
Innovatively compact and lightweight, it requires zero maintenance, promising an extraordinary lifespan;
Operational versatility is at your fingertips with manual, electric, or remote control options;
The operating mechanism is expertly sealed at the base of the switch box, delivering robust protection against corrosive outdoor elements;
Features a groundbreaking, minimalist design with an active mechanism that guarantees reliable dynamic performance, a compact form, and an astonishing 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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