Installation Depending On The System Earthing Arrangement (Sea); Single Phase Input; Ups With Common Normal And Bypass Ac Inputs; Ups With Separate Normal And Bypass Ac Inputs - Eaton Pulsar Serie Manuel D'installation Et D'utilisation

Installation depending on the system earthing arrangement (SEA)

Single phase input

UPS with common Normal and Bypass AC inputs

Main low-
voltage
switchboard
(MLVS)
Change in SEA between upstream and downstream or galvanic isolation required
Main low-
voltage
switchboard
(MLVS)

UPS with separate Normal and Bypass AC inputs

Main low-
voltage
switchboard
(MLVS)
Change in SEA between upstream and downstream or galvanic isolation required
Main low-
voltage
switchboard
(MLVS)
* The transformer is not necessary if:
Normal and Bypass AC inputs are connected to the same source,
and wires cross sections and wires lengths on Normal and Bypass inputs are identical,
and upstream protection is provided by only one switch with RCD (residual current device) for Normal and Bypass
inputs.
2. Installation
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34008486EN/AC - Page 19