| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, fondly termed 'the circuit breaker.' This masterpiece of outdoor distribution switchgear is exquisitely engineered to function at a rated voltage of 12kV and operates with a robust three-phase AC of 50Hz. Its versatile prowess allows it to adeptly manage the interruption and reconnection of load currents, overload currents, and short circuit currents within the power grid. With its exceptional overload and short circuit protective capabilities, it not only meets but exceeds control and measurement specifications. The breaker also offers sophisticated remote control and monitoring functionalities, making it an indispensable asset across a wide spectrum of applications including substations, industrial settings, and mining enterprise distribution systems. It is the epitome of reliability and efficiency for environments demanding frequent operations.
Structural features:
Meticulously crafted, this circuit breaker features a robust three-phase pillar dry design;
Designed with an impeccably sealed structure, it ensures extraordinary sealing, unmatched moisture resistance, and anti-condensation capabilities, rendering it ideal for high-temperature and humid environments;
Incorporates cutting-edge vacuum arc extinguishing technology, delivering peerless insulation reliability;
Offers impeccable opening and closing performance, guaranteeing safety with zero risks of combustion or explosion;
Compact and lightweight, it is maintenance-free and promises an extraordinary lifespan;
Offers versatility in operation with options for manual, electric, or remote control;
The operating mechanism is expertly sealed at the base of the switch box, providing formidable protection against outdoor environmental corrosion;
Boasts an innovative, simplistic design with a restless mechanism that guarantees dependable dynamic performance and a compact form, boasting 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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