AEG 1.04 Manual De Usuario

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disturbance. Separate battery chargers configured with switch 
mode power supply technology are responsible for charging or 
trickle-charging the battery connected in the intermediate 
circuit. The configuration of these charging rectifiers means the 
harmonic content of the charging current for the battery is 
almost zero, which increases the service life of the battery 
even more. The inverters are responsible for converting the DC 
voltage into a sinusoidal output voltage. A microprocessor-
driven control based on a pulse-width modulation (PWM) 
integrated in each UPS module guarantees, in conjunction with 
digital signal processor technology and extremely fast 
pulsating IGBT power semiconductors of the inverters, a 
voltage system of the highest quality and availability on the 
secured busbar. 
In the event of mains faults (e.g. current failures), the voltage 
continues to be supplied from the inverters to the load without 
any interruption. From this point onwards, the inverters draws 
their power from the battery instead of the rectifiers. Since no 
switching operations are necessary, there is no interruption in 
the supply to the load. 
The greatest possible supply reliability of connected loads is 
attained by the parallel connection of up to max. six PROTECT 
1.040 UPS modules. The n+x technology thus guarantees 
maximum reliability through up multiple active redundancy on 
the one hand as well as on the other hand the possibility of 
increased power with simple redundancy or even only higher 
UPS power without any redundancy. 
The automatic electronic bypass serves to increase the 
reliability of the supply further. It switches the public mains 
directly through to the load without any interruption, e.g. when 
there is a system overload. As a result, the automatic bypass 
represents an extra passive redundancy for the load.