32
TT distribution system and and backfeed protection circuit connection diagram with a separate bypass line at the
mains input
S10-S14: thermal-magnetic/differential isolation switches specified for the input line and the bypass line
S13: bypass line neutral opening contactor
S15: mains input line neutral opening contactor
S11: isolation switch in parallel to the S13 contactor coil
S12: two-pole isolation switch in series to the line to the EC9 connector of the relay interface card
INDICATION
By making the external backfeed protection as shown in the diagram, it is possible to isolate the line from the outside
and make it safe.
First switch on the S11 isolation switch in parallel to the contact coil and then switch off the S12 two-pole isolation switch
in series to the line to the EC9 connector.
4.2.8 External battery unit installation
Archimod HE 240-480 is set up to work both with strings of batteries in common or independent strings of batteries.
4. Installation
Summary of Contents for Archimod HE 240
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