AEG Protect D Series - 11 Glossary

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Bypass AC source
Source supplying the bypass line.
The equipment can be transferred
to the bypass line if an overload
occurs on the UPS output, for
maintenance or in the event of a
malfunction.
Frequency converter
Operating mode used to convert
the AC-power frequency between
the UPS input and output (50Hz ->
60Hz or 60Hz
-
> 50Hz).
Low
-
battery warning
This is a
battery
-
voltage level
indicating that battery power is
low and that the user must take
action to prevent the imminent
break in the supply of power to
the load.
Backup time
Time during which the load can
be supplied by the UPS operating
on battery power.
Load
Devices or equipment connected
to the UPS output.
HE mode
Operating mode by which the
load is supplied directly by the AC
source if it is within the tolerances
defined by the user. This mode
reduces the consumption of
electrical power
Manual bypass
Rotary switch controlled by the
user, used to connect the loads
directly to the AC source. Transfer
of the load to the manual bypass
enables UPS maintenance without
interrupting the supply of power
to the connected loads.
Normal (double conversion) mode
The normal UPS operating mode
in which the AC source supplies
the UPS which in turn supplies the
connected loads (after electronic
double conversion).
Normal AC source
Normal source of power for the
UPS.
Relay contacts
Contacts supplying
information to
the user in the form of signals.
UPS
Uninterruptible Power Supply.
11.
GLOSSARY