CHZD-12 Vacuum Circuit Breakers
|
No. |
Item |
Unit Data |
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|
1 |
Rated voltage |
kV |
12 |
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|
2 |
Rated isolating level |
1 min P.F. Withstand voltage |
dry test |
42 |
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|
wet test |
34 |
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Lightning impulse withstand voltage (peak value) |
75 |
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|
3 |
Rated current |
A |
200:400:630 |
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|
4 |
Rated short circuit breaking current |
kA |
12.5:16:20 |
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|
5 |
Rated sequence of operation |
|
O-0.3s-CO-180s-CO |
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|
6 |
Rated short circuit breaking time |
time |
30 |
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|
7 |
Rated short circuit making current (peak) |
kA |
50 |
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|
8 |
Rated peak value withstand current |
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|
9 |
Rated short-time withstand current |
12.5:16:20 |
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|
10 |
Rated short circuit duration |
s |
4 |
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|
11 |
Opening time under rated operation voltage |
ms |
15-50 |
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|
12 |
Closing time |
25-50 |
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|
13 |
Mechanical life time |
time |
10000 |
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|
14 |
Rated operation voltage and auxiliary loop rated control voltage |
V |
-220 =110 =24 |
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|
15 |
Stored energy time under rated voltage |
s |
<10 |
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|
16 |
CT |
Transformation ratio |
A |
( )/5 |
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|
Capacity |
VA |
15 |
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|
17 |
PT |
Output voltage |
V |
= 220 =110 =24 |
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|
Capacity |
W |
600 |
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|
18 |
Over current control |
A |
2-10 |
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|
19 |
Delay time |
ms |
40-850 |
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|
20 |
Fastbreak current |
A |
18 |
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|
21 |
Remote-control distance |
m |
30 |
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