Uninterruptible Power Supply
UPS Line Interactive
Line Interactive UPS, also known as UPS Line Interactive, are identified with the abbreviation VI (Voltage Independent). This happens because the output voltage is not independent from the input voltage, but there is a stabilization that reduces the variations.
In this way, in normal operating conditions, the UPS protects the connected equipment from overvoltage or undervoltage by means of a rectifier circuit and, in the event of a blackout, an inverter comes into play and the group exchanges the load on the voltage generated by the inverter.