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

System description
17
EDS460-490_D00085_01_M_XXEN/02.2016
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 locating current is shown in the diagram below:
Legend
.............
Locating current loop I
∆s
.. .. .. ..
Residual currents I
∆
(example)
C
Lu
Upstream capacitances, system leakage capacitances
upstream the measuring current transformer.
C
Ld
Downstream capacitances, system leakage capacitances
downstream the measuring current transformer.
R
Fu
Insulation fault upstream the measuring current transformer.
R
Fd
Insulation fault downstream the measuring current transfor-
mer.