| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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The ZW32-12 outdoor high voltage vacuum circuit breaker, endearingly termed the 'circuit breaker,' is a masterfully engineered piece of outdoor distribution equipment. It operates at an impressive rated voltage of 12kV and is designed to accommodate a vigorous three-phase AC of 50Hz. This adaptable circuit breaker adeptly manages the interruption and connection of load current, overload current, and short circuit currents within the power grid. It is equipped with cutting-edge overload and short circuit protective capabilities, seamlessly meeting control and measurement specifications. Furthermore, it offers sophisticated remote control and monitoring functions. Its wide application range spans substations, industrial facilities, and mining enterprise distribution systems, making it the ideal choice for environments with frequent operational demands.
Structural features:
Crafted with meticulous precision, the circuit breaker boasts a robust three-phase pillar dry design;
Engineered with a fully enclosed architecture, it provides unparalleled sealing, remarkable resistance to moisture, and superb anti-condensation properties, making it superbly suited for high-temperature and humid areas;
Employs cutting-edge vacuum arc extinguishing technology, ensuring extraordinary insulation reliability;
Delivers impeccable opening and closing operation, guaranteeing safety with no danger of combustion or explosion;
Compact and lightweight, it requires no maintenance and offers an impressive operational lifespan;
Offers versatile operation modes including manual, electric, and remote control options;
The operating mechanism is expertly sealed at the base of the switch box, providing excellent protection against outdoor environmental corrosion;
Features a novel, straightforward design with a restless mechanism that ensures reliable dynamic performance, a compact form factor, and an extraordinary 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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