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ASI avec réseaux d'entrée AC Normal et AC Bypass séparés
2. Installation
2.5 Installation depending on the system earthing arrangement
(SEA)
UPS with common Normal and Bypass AC inputs
Changement de SLT entre amont et aval ou isolation galvanique requis
Changement de SLT entre amont et aval ou isolation galvanique requis
(*): The transformer is not necessary if:
Normal and Bypass AC inputs are connected to the same source,
z
and wires cross sections and wires lengths on Normal and Bypass inputs are identical,
z
and upstream protection is provided by only one switch with RCD (residual current device) for Normal
z
and Bypass inputs.
EX RT must be fed from a 3-phase source with neutral.
Bypass AC
Normal AC
Bypass AC
Normal AC
Bypass AC
Normal AC
Main
low-voltage
switchboard
(MLVS)
load
load
Main
low-voltage
switchboard
(MLVS)
Main
low-voltage
switchboard
(MLVS)
load
Main
low-voltage
switchboard
(MLVS)
load
Bypass AC
Normal AC
(*)
(*)
