Bender EDS460 - Settings Menu 7: Alarm Address Configuration; Settings Menu 8: Clock and Date Configuration; Settings Menu 9: Password Protection

System description
17
TGH1394en/05.2007
3.2.3 Currents in the EDS system
In addition to the block diagram on page 15, the path of the residual
currents and the test current is shown in the diagram below:
Key:
............. Test current loop I(ds)
.. .. .. .. Residual currents I(d) (example)
C
E-V
Upstream capacitances, system leakage capacitances
upstream the measuring current transformer.
C
E-N
Downstream capacitances, system leakage capacitances
downstream the measuring current transformer.
R
F-V
Insulation fault upstream the measuring current transformer.
R
F-N
Insulation fault downstream the measuring current trans-
former.
U
S
V
IT-System
W...
EDS...
PE
R
F-N
R
F-V
C
E-N
C
E-V
I(d), I(ds)
IRDH575/
PGH...
1
2
3