| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker, affectionately referred to as the 'circuit breaker.' This remarkable outdoor distribution switchgear is expertly crafted to operate at a rated voltage of 12kV with a formidable three-phase AC of 50Hz. Designed for versatility, it masterfully manages the interruption and connection of load current, overload current, and short circuit current within the power grid. With its advanced overload and short circuit protective capabilities, it seamlessly meets control and measurement needs while offering cutting-edge remote control and monitoring functionalities. Ideal for substations, industrial settings, and mining enterprises, this circuit breaker provides unmatched control and operational excellence, particularly in environments demanding frequent operations.
Structural Features:
Crafted with exceptional precision, the circuit breaker features a three-phase pillar dry design, ensuring enduring reliability;
Engineered with a fully enclosed structure that provides superior sealing, remarkable moisture resistance, and impressive anti-condensation properties, making it the ideal choice for high-temperature and humid environments;
Employs cutting-edge vacuum arc extinguishing technology, guaranteeing exceptional insulation reliability;
Delivers impeccable opening and closing performance, ensuring safety without any risk of combustion or explosion;
Compact and lightweight, this circuit breaker is maintenance-free and promises a remarkable lifespan;
Offers versatile operation options, including manual, electric, or remote control;
The operating mechanism is carefully sealed at the base of the switch box, effectively shielding it against the harshness of outdoor environmental corrosion;
Showcasing a novel, simplistic design with an exceptional restless mechanism, it ensures reliable dynamic performance, a compact form, 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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