Ups general description & installation
OM226130 Rev. A
5
2. UPS GENERAL DESCRIPTION
2.1 TYPOLOGY
All UPS covered by this manual are on-line, double conversion; the inverter supplies
always energy to the load, whether mains is available or not (according to the battery
autonomy time).
WARNING
The UPS output is energized even during mains failure, therefore in compliance with
the prescriptions of EN 50091-1, the installer will have to identify the line or the plugs
supplied by the UPS making the User aware of this fact.
This configuration guarantees the best service to the User, as it supplies clean
continuously regulated power and guarantees the voltage and frequency will be
stabilised at nominal value independently from mains status. Thanks to the double
conversion, it makes the load completely immune from micro-interruptions due to
excessive mains variation, and prevents damage to the critical load (Computer -
Instrumentation - Scientific equipment etc.).
Picture 1 - Block diagram
