ABB VD4X User Manual

TECHNICAL DATA 9
2.3 Permissible number of switching operations of the vacuum interrupters in relation to
breaking current
—
Figure 2/2:
Permissible number
of vacuum interrupter
operating cycles n as
a function of the
breaking current Ia
(Reference see section
2.1 – Technical data
page
6)
Diagram A Diagram B
Diagram C Diagram D
Number of operating cycles 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
2 3 4 5 6 7 8 109 20 30 40 50
10
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
2 3 4 5 6 7 8 109 20 30 40 50
10
Number of operating cycles n
Breaking current I
a
(kA)
Number of operating cycles 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
2 3 4 5 6 7 8 109 20 30 40 50
10
—
Figure 2/2
Breaking current I
a
(kA)
Number of operating cycles 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
2 3 4 5 6 7 8 109 20 30 40 50
10

ABB VD4X Specifications

General

Brand	ABB
Model	VD4X
Category	Circuit breakers
Language	English