VZ1(P) -12 Series type indoor high voltage vacuum circuit breaker is rated
voltage 12kV, three-phase AC 50Hz Indoor high-voltage switchgear.
The
use of environmental conditions:
1.Ambient temperature: not higher than +40 °C, not less than -15°C
2. Altitude: not exceed 1000m.
3. Relative humidity: daily average of not more than 95%, month average of
not more than 90%.
4. Earthquake intensity: not more than ten.
5. No fire, explosion hazard, serious filthy, chemical corrosion, as well as
places of intense vibration.
Mainly technical
parameters:
|
NO |
Item |
Units |
parameters |
|
1 |
Rated voltage |
KV |
12 |
|
2 |
Rated Frequency |
HZ |
50 |
|
3 |
Rated Current |
A |
630.1250 |
|
4 |
Rated short-circuit breaking current |
KA |
20 25 31.5 |
|
5 |
Rated short-circuit closing current (peak) |
KA |
50 63 |
|
6 |
Rated short-circuit duration |
S |
4 |
|
7 |
Rated short-circuit breaking current breaking number |
nos |
50s |
|
8 |
Rated operating sequence |
|
0-0.3s-CO-180s-CO |
|
9 |
Rated lightning impulse withstand
voltage |
kv |
125 |
|
10 |
1min power frequency withstand voltage |
KV |
65 |
|
11 |
Closing time |
ms |
≤ 70 |
|
12 |
opening time |
ms |
≤ 50 |
|
13 |
Mechanical life |
Times |
20000 |
|
14 |
Rated Storage and operation voltage |
V |
AC DC 220/110 |
|
15 |
Breaking life |
ms |
≤ 80 |
|
16 |
Storage life |
s |
≤ 10 |
Adjust the parameters of mechanical
properties:
|
No |
Item |
Unit |
Parameters |
|
1 |
Contact distance |
mm |
14±1 |
|
2 |
Contact Over-travel |
mm |
3.5±1 |
|
3 |
Closing speed |
m/s |
1.0±0.2 |
|
4 |
Opening speed |
m/s |
1.3±0.2 |
|
5 |
Contact closing spring time |
ms |
≤2 |
|
6 |
Rated contact pressure |
N |
20KA(2400±200) 25KA (2400±200) 31.5KA(3100±200) |
|
7 |
Three phase closing opening asynchrony |
ms |
≤2 |
Drawings:
1. Outline
drawing
