socomec Green Power 100, Operating Manual, Page: 14 / 64

IT
ALIANO
ENGLISH
14
IOMMASGPXX00-GB_01
Green Power
100-120 kVA
3.4.1 Backfeed protection.
The UPS is preset for the installation of external protec-
tion devices against the backfeed of dangerous volta-
ges, on both the input power supply line (MAINS SUP-
PLY) and on the auxiliary backup mains power supply
line (AUX MAINS SUPPLY); these devices are controlled
by means of the card shown in fi gure 3.4.1-1.
In the event that the equipment does not have a vol-
tage protection device, warning labels must be affi xed
on all mains power disconnectors installed away from
the UPS area, in order to remind support personnel
that the circuit is connected to a UPS (see also paragra-
ph 2.1 “Warnings” of this manual and paragraph 4.5.3 of
standard EN62040-1-1 2003-11). The label is supplied
with the equipment.
If, in certain anomaly states, or because of the installation
upstream (e.g. undetected and protected earth fault,
or high leakage in a phase, or with IT systems) there
is a hazardous potential on neutral, a suitable isolating
switch must be provided on the neutral as well, or else
there must be a detection, signalling and protection
system (see “Input protection scaling” table in section
3.4 “Electrical requirements”).
Connections, refer to paragraph 4.4.5.
3
REQUISITES
3.4.1-1
F
ACS B.K. B.K.
XB1
XB7
F1
VS1
NA1
COM1
XB8
NA2
COM2
XB9
F
N
XB4
XB2 XB3
BYPASS INPUT
XB5 XB6
N
F2
VS2