12kv vacuum circuit breaker for indoor
1.Rated voltage 12KV
2.Rated current 630/1250/1600A
3.short-circuit breaking current
12kv vacuum circuit breaker for indoor
1.Rated voltage 12KV
2.Rated current 630/1250/1600A
3.short-circuit breaking current
Technical data:
No. |
Item |
Unit |
Value |
||
1 |
Rated voltage |
KV |
12 |
||
2 |
Rated lighting impulse withstand voltage |
KV |
Inter phase or to ground 75, fructure 80 |
||
3 |
Rated short-time power frequency withstand voltage |
KV |
Inter phase or to ground 42, fructure 48 |
||
4 |
Rated short-circuit breaking current |
KA |
20,25 |
31.5 |
40 |
5 |
Rated current |
A |
630/1250/1600 /2000/2500/3150 |
||
6 |
Rated thermo stability current(valid) |
KA |
25 |
31.5 |
40 |
7 |
Rated dynamic stability current(peak) |
KA |
63 |
80 |
100 |
8 |
Rated short-circuit making current(peak) |
KA |
63 |
80 |
100 |
9 |
Rated operations of short-circuit breaking current |
Times |
50(40kA is 30) |
||
10 |
Rated working current of over current and tripping coil |
A |
5 |
||
11 |
Rated operating sequence |
|
0-0.3s-CO-180s -CO |
||
12 |
Rated current of auxiliarate switch |
A |
AC10,DC5
|
||
13 |
Rated voltage of energy saving release |
V |
AC.DC220 AC.DC110 |
||
14 |
Closing time |
Times |
≤75 |
||
15 |
Opening time |
|
≤60(40) |
||
16 |
Power of energy saving motor |
W |
275 |
||
17 |
Energy saving time |
S
|
≤15 |
||
18 |
Mechanical life |
Times |
20000 |