XUCKY Electric as a manufacturers & suppliers of ZW20-12 Series Outdoor High Voltage Vacuum Circuit Breaker in China for more than 25 years, the performance of its oil immersed transformer is according with IEC60076, GB1094, GB/T6451. Meanwhile our distribution transformer has won great reputation with high quality and good price in Russia, South Asia, Africa, Middle East and South America. We provide customization and technical supporting. Feel free to contact us for a competitive quotation and all technical supports online!
♦ Installation way: pole mounted;
♦ Pole type: integrated pole;
♦ Application: outdoor 12kV substation, power plant.
♦ Operation type: manual, electric, remote control.
♦ Altitude: <2000m;
♦ Air temperature: -40°C 〜+40°C; daily temperature change <25°C;
♦ Wind speed < 35m/s;
♦ Filthy level: IV;
♦ Installation places: No fire, explosion hazard, severe chemical corrosion or serious vibration;
♦ Earthquake intensity: <8 level.
|
NO |
Item |
Unit |
Value |
|
|
1 |
Rated voltage |
kV |
12 |
|
|
2 |
Power frequency withstand voltage (1min) |
(dry) inter-phase, earth/fracture； |
kV |
42/48 |
|
(wet) inter-phase, earth |
34 |
|||
|
3 |
Lightning impulse withstand voltage (interphase, earth/fracture) |
kV |
75/85 |
|
|
4 |
Rated current |
A |
630,1250 |
|
|
5 |
Rated frequency |
Hz |
50 |
|
|
6 |
Rated short circuit breaking current |
kA |
20, 25 |
|
|
7 |
Rated peak value withstand current (peak) |
kA |
50, 63 |
|
|
8 |
Rated short time withstand current |
kA |
20, 25 |
|
|
9 |
Rated short circuit making current |
kA |
50, 63 |
|
|
10 |
Rated short circuit duration |
S |
4 |
|
|
11 |
Rated operating sequence |
Times |
O-0.3S-CO-1 80S-CO |
|
|
12 |
Rated short circuit breaking current breaking number |
Times |
30 |
|
|
13 |
Mechanical life |
Times |
10000 |
|
|
14 |
Rated operation voltage (can be customized) |
V |
220 |
|
|
15 |
Opening time |
ms |
≤80 |
|
|
16 |
Closing time |
ms |
≤120 |
|
|
17 |
Fully breaking time |
ms |
≤100 |
|
|
18 |
Rated cable charging breaking current |
A |
50 |
|
|
19 |
Grade |
|
E2~C2~M2(10000) |
|
|
20 |
Rated short circuit breaking current breaking number |
Times |
30 |
|
Address
No.2567 Liuqing South Road, Liushi, Yueqing, Wenzhou, Zhejiang, China
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