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ABB VD4 12.06.16 p150 - Permissible Switching Cycles Curves

ABB VD4 12.06.16 p150
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22
5
0,05
0,1
234567
8
9
10 20 30 40
50
0,2 0,3
0,4
0,5
0,6
0,7
1
2
2
2
2
1,5
3
3
3
3
4
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5
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N
r.
Ia
(kA)
V4D
- 12 kV, 630 A, 20 kA<
- 17,5 kV, 630 A, 16 kA
In = 630 A
5
0,05
0,1
234567
8
9
10 20 30 40
50
0,2 0,3
0,4
0,5
0,6
0,7
1
2
2
2
2
1,5
3
3
3
3
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9
10
2
10
3
10
4
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5
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8
9
10
N
r.
Ia
(kA)
V4D
- 24 kV, 630 A, 16 kA
In = 630 A
5
0,05 0,1 2 3 4 5 6 7 8
9
10 20 30 40
50
0,2 0,3
0,4
0,5
0,6
0,7
1
2
2
2
2
1,5
3
3
3
3
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2
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N
r.
Ia
(kA)
In = 1250 A
In = 630 A
V4D
- 12 kV, 630 A, 25 kA
- 12-17,5 kV, 1250 A, 25 kA
- 17,5 kV, 630 A, 20 kA
- 24 kV, 630 A, 20/25 kA
- 24 kV, 1250 A, 25 kA
<
<
5
0,05 0,1 2 3 4 5 6 7 8
9
10 20 30 40
50
0,2 0,3
0,4
0,5
0,6
0,7
1
2
2
2
2
1,5
3
3
3
3
4
4
4
4
5
5
5
5
6
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9
9
10
2
10
3
10
4
10
5
6
7
8
9
10
N
r.
Ia
(kA)
V4D
- 12-17,5 kV, 630/1250 A, 31,5 kA
In = 1250 A
In = 630 A
7.2.3. Curves of permissible numbers of switching cycles
The following graphs show the number of closing-opening cycles (No.) al-
lowed, of the vacuum interrupters, according to the breaking capacity (Ia).
Caption
No.Number of closing-
opening cycles allowed
for the vacuum inter-
rupters.
Ia Breaking capacity of the
vacuum interrupters.
Fig. 8a Fig. 8b
Fig. 8c Fig. 8d
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