ZW20-12 outdoor HV vacuum circuit breaker is a 3-phase AC 50Hz 12kV outdoor switch equipment
♦ Installation way: pole mounted;
♦ Pole type: integrated pole;
♦ Application: outdoor 12kV substation, power plant.
♦ Operation type: manual, electric, remote control.
Environmental Conditions
♦ 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.
Main Technical Parameters
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 |
General Structure Drawing and Installation Size (unit: mm)
Installation ways