12kv outdoor Vacuum Circuit Breaker
AC three-phase, 50HZ
630A, 1250A
OEM & ODM,Complete equipment
CCC,ISO9001,CE, CB,IEC60898
12kv outdoor VCB (ZW32 series) spring mechanism outdoor vacuum breaker, a kind of outdoor pillar high voltage vacuum circuit breaker, with 50Hz, three-phase alternating current and 11KV rated voltage. It apply to open circuit、close the load current、 overload current and short -circuit current and other power distribution system, such as substation、industrial and mining
Normal service condition
Altitude |
≤1000m |
|
Ambient temperature |
Max |
+40℃ |
Min |
-15℃ |
|
Ambient humidity: Maximum average humidity |
24 hour ≤95% |
|
1 month ≤90% |
||
Maximum water vapor pressure |
24 hours ≤2.2kpa |
|
1 month ≤1.8kpa |
The ambient air has no obvious pollution of dust smoke, corrosive or combustible gases, steams or smog
12kv VCB Technical Parameters
No. |
Items |
Unit |
Parameter |
|
1 |
Rated voltage |
KV |
12 |
|
2 |
Rated current |
A |
630 1250 |
|
3 |
Rated frequency |
Hz |
50/60 |
|
4 |
1 minute withstand pressure |
Wet |
KV |
34 |
Dry |
42 |
|||
To ground |
49 |
|||
5 |
Lightning shock withstand current phase, to ground |
KV |
75/85 |
|
6 |
Rated short-circuit breaking current |
KA |
20 25 |
|
7 |
Rated short-circuit closing current |
50 63 |
||
8 |
Rated peak value of withstand current |
50 63 |
||
9 |
4s short time withstand current |
20 25 |
||
10 |
Rated operating sequence |
|
O-0.3s-CO-180s-CO |
|
11 |
Rated short circuit breaking current breaking times |
times |
30 |
|
12 |
Mechanical endurance |
30000 |
||
13 |
Permanent magnet control voltage |
V |
AC/DC 220 |
|
14 |
Secondary circuit, 1 minute power frequency withstand voltage |
KV |
2 |