| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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The ZW32-12 outdoor high voltage vacuum circuit breaker, endearingly referred to as the 'circuit breaker,' is an outstanding piece of outdoor distribution switchgear designed with precision to operate at a rated voltage of 12kV coupled with a robust three-phase AC of 50Hz. This versatile circuit breaker expertly manages the interruption and connection of load current, overload current, and short circuit current within the power grid. It showcases advanced overload and short circuit protective capabilities, effortlessly meeting control and measurement needs while offering sophisticated remote control and monitoring functionalities. Its extensive application across substations, industrial environments, and mining enterprise distribution systems ensures unparalleled control and operational excellence, making it the ideal solution for environments demanding frequent operations.
Structural features:
Meticulously crafted, the circuit breaker features a three-phase pillar dry design, displaying engineering prowess;
Engineered with a fully enclosed structure, it offers unbeatable sealing, exceptional moisture resistance, and anti-condensation attributes, rendering it the perfect choice for high-temperature and humid regions;
Utilizes cutting-edge vacuum arc extinguishing technology, ensuring exceptional insulation reliability;
Delivers impeccable opening and closing performance, guaranteeing safety with no risk of combustion or explosion;
With its compact and lightweight design, it requires no maintenance and offers a remarkable lifespan;
Offers versatile operation options—manual, electric, or remote control, catering to varied user needs;
The operating mechanism is comprehensively sealed at the base of the switch box, providing robust protection against outdoor environmental corrosion;
Boasts a novel, simplistic design with an unwavering mechanism that ensures reliable dynamic performance, a compact form, and an impressive service lifespan 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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