ABB DCS800 Hardware Manual page 37

Single-phase filters for field supply
Many field supply units are single-phase converters for up to 50 A excitation current.
They can be supplied by two of the three input phases of the armature supply
converter. Then a field supply unit does not need its own filter.
If the phase to neutral voltage shall be taken (230 V in a 400 V line) then a separate
filter is necessary. ABB offers such filters for 250 V and 6...30 A.
Converter type of dc current
field supply unit [A]
DCF803-0016 * 8
DCF803-0035 *
16
FEX-425-Int *
DCF803-0050 50
DCF804-0050 50
further filters for 12
30
* single-phase operation
3ADW000194R0611 DCS800 Hardware Manual f us
Filter type ➀
U = 250 V
max
NF1-250-8
NF1-250-20
NF1-250-55
➀ The filters can be optimized for the real field cur-
NF1-250-55
NF1-250-12
rents: I
Filter
NF1-250-30
= I
Field
Planning the electrical installation
37