| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, fondly referred to as the 'circuit breaker.' This remarkable piece of outdoor distribution switchgear is engineered to perform flawlessly at a rated voltage of 12kV, backed by a robust three-phase AC system operating at 50Hz. This versatile breaker is adept at managing the interruption and reconnection of load current, as well as handling overload and short circuit currents with ease. It features cutting-edge overload and short circuit protection, expertly meeting all control and measurement specifications. With its sophisticated remote control and monitoring capabilities, this circuit breaker is indispensable in substations, industrial environments, and mining enterprise distribution systems. It provides unmatched control and operation, making it the ideal choice for settings that demand frequent operations.
Structural features:
This expertly crafted circuit breaker boasts a refined three-phase pillar dry design;
Meticulously engineered with a fully enclosed structure, it provides superior sealing and remarkable moisture resistance. Its outstanding anti-condensation properties make it the ultimate choice for high-temperature, humid regions;
Incorporates cutting-edge vacuum arc extinguishing technology, offering exceptional insulation reliability;
Ensures impeccable opening and closing performance, delivering safety with zero risk of combustion or explosion;
Designed to be compact, lightweight, maintenance-free, and offers an extraordinary lifespan;
Experience the flexibility of operation with manual, electric, or remote control options available;
The operating mechanism is meticulously sealed at the base of the switch box, offering unparalleled protection against outdoor environmental corrosion;
Features an innovative, minimalistic design with a restless mechanism, guaranteeing 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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