| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, affectionately dubbed the 'circuit breaker.' This remarkable piece of engineering is an outdoor distribution switchgear operating at a rated voltage of 12kV, with a powerful three-phase AC of 50Hz. Exquisitely versatile, it expertly manages the interruption and connection of load current, overload current, and short circuit current within the power grid. Its advanced features provide exceptional overload and short circuit protection, effortlessly meeting control and measurement needs while offering cutting-edge remote control and monitoring functionalities. Widely used across substations, industrial environments, and mining enterprise distribution systems, this circuit breaker provides unmatched control and operation, perfectly suited for settings with high operational demands.
Structural features:
Meticulously crafted with precision, this circuit breaker exemplifies a sophisticated three-phase pillar dry design;
Designed with a fully enclosed structure, it delivers superior sealing, exceptional moisture resistance, and anti-condensation capabilities, rendering it an ideal selection for high-temperature and humid locales;
Incorporates cutting-edge vacuum arc extinguishing technology, offering unparalleled insulation reliability;
Ensures impeccable opening and closing performance, providing safety without risk of combustion or explosion;
Boasting a compact and lightweight build, it is maintenance-free and promises an impressive lifespan;
Remarkably versatile, offering multiple operation modes—manual, electric, or remote control;
The operating mechanism is meticulously sealed at the base of the switch box, providing effective protection against outdoor environmental corrosion;
Featuring a novel, simplistic design with a restless mechanism, this breaker ensures reliable dynamic performance, a compact form factor, and an astounding 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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