| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, affectionately known as the 'circuit breaker.' This impressive piece of engineering is an outdoor distribution switchgear designed to excel at a rated voltage of 12kV, coupled with a robust three-phase AC of 50Hz. This dynamic circuit breaker expertly manages the interruption and connection of load current, overload current, and short circuit current within the power grid. It features state-of-the-art overload and short circuit protective capabilities, effortlessly meeting control and measurement specifications while offering sophisticated remote control and monitoring functionalities. Its applications extend far and wide, encompassing substations, industrial environments, and mining enterprise distribution systems—delivering unsurpassed control and operation, particularly suited for scenarios with frequent operations.
Structural Features:
Crafted with unparalleled precision, the circuit breaker presents a three-phase pillar dry design;
Engineered with a meticulously fully enclosed structure, it offers exceptional sealing, superior moisture resistance, and anti-condensation properties, making it the quintessential choice for high-temperature and humid regions;
Utilizes cutting-edge vacuum arc extinguishing technology, ensuring outstanding insulation reliability;
Exhibits flawless opening and closing performance, guaranteeing safety with no risk of combustion or explosion;
Compact, lightweight, and designed with no maintenance requirements, it promises an impressive lifespan;
Versatile in operation with manual, electric, or remote control options;
The operating mechanism is expertly sealed at the base of the switch box, effectively protecting against outdoor environmental corrosion;
Presents a novel, streamlined design featuring a restless mechanism that ensures reliable dynamic performance, 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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