ABB ZX0 - Page 59

Manual ZX0 HB 600 en - Revision 05 | 59
Table 4.3.5.2: Selection table for HV HRC fuses, Siba (U
r
up to 12 kV)
Operating
Voltage
Transformer
Rating
Relative
impedance
voltage u
K
Rated transformer
current
Rated current of the HV-fuse
[kV] [kVA] [%] [A]
Type
min.
[A] Type
max.
[A]
6 ... 7.2
50 4 4.8
HHD-B
16
HHD-B
16
75 4 7.2 16 20
100 4 9.6 20 25
125 4 12 20 31.5
160 4 15.4 31.5 40
200 4 19.2 40 50
250 4 24.1 40 63
315 4 30.3 50 63
400 4 38.5 63 63
400 6 38.5 63 HHD-BSSK 80
10 ... 12
50 4 2.9 10
HHD-B
10
75 4 4.3 10 10
100 4 5.8 16 16
125 4 7.2 16 20
160 4 9.2 20 25
200 4 11.5 20 31.5
250 4 14.4 25 40
315 4 18.2 31.5 50
400 4 23.1 40 50
400 6 23.1 40 40
500 4 28.9 50 63
500 6 28.9 50
HHD-BSSK
63
630 4 36.4 63 80
630 6 36.4 63 80
800 6 46.2 HHD-BSSK 80 80