Customization: | Available |
---|---|
Type: | Power |
Structure: | Protection |
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NO |
Item |
Units |
Technical parameters |
||
1 |
Rated voltage |
KV |
12 |
||
2 |
Rated short-duration power frequency withstand voltage |
|
42/48(Interphase, ground/fracture) |
||
3 |
Rated lightning impulse withstand voltage |
|
42/48(Interphase, ground/fracture) |
||
4 |
Rated frequency |
Hz |
50 |
||
5 |
Rated current |
A |
630 1250 |
630 1250 1600 2000 2500 3150 |
630 1250 1600 2000 2500 3150 |
6 |
Rated short-circuit breaking current |
KA |
20/25 |
31.5 |
40 |
7 |
Rated short-time withstand voltage |
|
20/25 |
31.5 |
40 |
8 |
Rated short circuit duration |
S |
4 |
||
9 |
Rated peak withstand current |
KA |
50/63 |
80 |
100 |
10 |
Rated short circuit closing current |
|
50/63 |
80 |
100 |
11 |
Secondary circuit power frequency withstand voltage (1min) |
|
2000 |
||
12 |
Rated single / back to back capacitor group breaking current |
A |
630/400(40kA:800/400) |
||
13 |
Rated capacitor bank closing current |
|
12.5 (frequency is not greater than) |
||
14 |
Mechanical life |
KA |
20000 |
||
15 |
Rated current breaking times (electrical life) |
|
20000 |
||
16 |
Rated short circuit current breaking times |
times |
50(40KA≤30) |
||
17 |
Dynamic and static contacts allow wear cumulative thickness |
mm |
3 |
||
18 |
Energy storage time |
s |
≤10 |
||
19 |
Contact opening distance |
mm |
11±1 |
||
20 |
Overtravel |
|
3.5±0.5 |
||
21 |
Contact closing bounce time |
ms |
≤2(40KA≤3) |
||
22 |
Three-phase split/closed period |
|
≤2 |
||
23 |
Average opening speed (contacts are separated by -8mm) |
m/s |
1.2±0.2 |
||
24 |
Main conductive loop resistance |
|
0.6±0.2 |
||
25 |
Main conductive loop resistance |
μΩ |
≤50(630A)≤45(1250A) ≤40 (1600,2000A)≤35 (2500A or more) |
||
26 |
Rated operation sequence |
|
0-0.3s-Co-180s-Co |