AEG Protect A. 1000 Operating Instructions Manual page 9

the internal energy storage, something which in turn has a
positive effect on battery availability.
Line
Mains
filter
UPS Block diagram PROTECT A.
The static bypass switch is activated in the event of a mains
failure. The inverter then takes over the voltage supply of the
connected loads, in order to prevent the risk of data loss or
damage to the loads. PROTECT A. supplies voltage until the
batteries are discharged or your IT system has been shut
down and switched off properly.
The standby time mainly depends on the connected loads. If
the mains power supply is back to normal values, the UPS will
switch back the loads to mains supply. The battery charger will
then recharge the batteries.
For safety reasons (as required by German standards, VDE),
the mains input in the unit will be disconnected by a two-pole
switch in the event of a mains failure. Energy backfeed to the
mains and voltage supply to the pins of the mains connector
are thus reliably avoided.
Furthermore, additional measures ensure effective protection
for the data/network interface.
~
Rectifier
9
A. V. R.
~
Inverter
Battery
Load