| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, endearingly referred to as the 'circuit breaker.' This exceptional outdoor distribution switchgear is meticulously crafted to operate with a rated voltage of 12kV, and a solid three-phase AC current at 50Hz. With unparalleled versatility, it effortlessly manages the interruption and connection of load current, overload current, and short circuit current within the power grid. Designed to excel, it offers premier overload and short circuit protection, while effortlessly meeting control and measurement demands. Enhanced with sophisticated remote control and monitoring capabilities, its applications include substations, industrial zones, and mining enterprise distribution systems, delivering unmatched control and operation. Perfectly suited for environments demanding frequent operations, this circuit breaker is your ideal ally in power management.
Structural features:
Expertly crafted with precision engineering, the circuit breaker presents a remarkable three-phase pillar dry design;
Featuring a meticulously engineered fully enclosed structure, it stands out with superior sealing, exceptional moisture resistance, and impressive anti-condensation properties, rendering it the ultimate choice for high-temperature and humid regions;
Incorporates cutting-edge vacuum arc extinguishing technology, guaranteeing outstanding insulation reliability;
Employs flawless opening and closing performance, ensuring absolute safety with zero risk of combustion or explosion;
Innovatively compact and lightweight, it requires no maintenance, promising a remarkable lifespan;
Remarkable versatility in operation with manual, electric, or remote control options available;
The operating mechanism is thoughtfully sealed at the base of the switch box, offering robust protection against outdoor environmental corrosion;
Highlights a novel and simplistic design featuring a restless mechanism that ensures dependable dynamic performance, a compact form, and 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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