Modular units

Appendices Fusarc CF fuses
Fuse and limitation curves
The diagram shows the maximum limited broken current value
as a function of the rms current value which could have occured
in the absence of a fuse.
DE53618
DE53619
Fuse curve 3.6 - 7.2 - 12 - 17.5 - 24 - 36 kV
Time (s)
1000 86
4
2
100
8
6
4
2
10
8
6
4
2
1
8
6
4
2
0.1
8
6
4
2
0.01
4 A
10
6.3 A
10 A
16 A
20 A
25 A
31.5 A
40 A
50 A
63 A
80 A
100 A
2 4 6 8
100
2 4 6 8
1000
2 4 6 8
10000
Current (A)
102 AMTED398078EN.indd
125 A
160 A
200 A
Limitation curve 3.6 - 7.2 - 12 - 17.5 - 24 - 36 kV
Maximum value of the limited broken current (kA peak)
100
8
6
4
2
10
8
6
4
2
1
8
6
4
2
0.1
6 8 2 4 6 8 2 4 6 8 2 4 6 8
0.1
1
10
100
250 A
Ia = 1.8 Ik 2
Is = Ik 2
250 A
200 A
160 A
125 A
100 A
80 A
63 A
50 A
40 A
31.5 A
25 A
20 A
16 A
10 A
6.3 A
4 A
Rms value of the presumed broken current (kA)