ABB VM1 - Page 34

34 VM1 Vacuum circuit-breaker | Instruction manual 504/05
0,05
5
0,1 0,2 0,3 0,4 0,5 0,6 0,8 1
6
7
8
10
2
3
4
5
6
7
8
10
2
2
3
4
5
6
7
8
10
3
2
3
4
5
6
7
8
4
2
3
4
5
6
7
8
10
5
234567810920304050
10
2500 A1250 A
3150 A
1600 A
2000 A
Breaking current l (kA)
Number of operating n
0,05
5
0,1 0,2 0,3 0,4 0,5 0,6 0,8 1
6
7
8
10
2
3
4
5
6
7
8
10
2
2
3
4
5
6
7
8
10
3
2
3
4
5
6
7
8
4
2
3
4
5
6
7
8
10
5
234567810920304050
10
2500 A1250 A
3150 A
1600 A
2000 A
Breaking current l (kA)
Number of operating n
Diagram F)
Figure 10b: Permissible number of vacuum interrupter operating cycles n as a function of the breaking current I
a
.
(Reference see section 10.2.1 and 10.3.1 – Performance data and weight page 35/36 and 41/42)
Diagram E)
BA 504-05 GB_29102012.indd 34 30.10.12 13:45