System Description - AEG Protect C 1000 Bedienungsanleitung

2.2 SYSTEM DESCRIPTION

EN
The UPS is connected to a shockproof socket between the public utility's mains and
the loads to be protected.
The power section of the rectifier converts the mains voltage to DC voltage for
supplying the inverter. The circuit technology used PFC enables sinusoidal current
consumption and therefore operation with little system disturbance. A separate,
second rectifier charging rEC set up using switch mode power supply technology is
responsible for charging or trickle-charging the battery connected in the intermediate
circuit. The configuration of this charging rEC means the harmonic content of the
charging current for the battery is almost ero, so the service life of the battery is
increased even more. The inverter is responsible for converting the DC voltage into a
sinusoidal output voltage. A microprocessor-controlled control system based on
pulse-width modulation PWM in conjunction with an extremely quickly pulsating
IGBT power semiconductors of the inverter guarantee that the voltage system on the
protected busbar is of the highest quality and availability
In the event of mains faults e.g. power outage , the voltage continues to be supplied
from the inverter to the load without any interruption. From this point onwards, the
inverter draws its power from the battery instead of the rectifier. No switching
operations are necessary; this means there is no interruption in the supply to the load.