Line Interactive UPS
The Line Interactive UPS/Inverter is a totally different than any kind of UPS/Inverters in market now. It has a separate battery charger, inverter and source selection switch and that is replaced by a combination of UPS / Inverter which both charges the battery and converts its energy to AC for the output as per requirement. When the line power is operating, the UPS/Inverter charges the battery & Vice-Versa.
The main advantage of this design is that the inverter/converter unit is always connected to the output, powering the equipment. This design allows for faster response to a power failure than a standby UPS. The inverter/converter is also normally fitted with circuitry to filter out noise and spikes, and to regulate the power output, providing additional power during brownouts and curtailing output during surges.
The line-interactive UPS is commonly used in units for home and business applications & it is available up to 3,000 VA or more than this as per Customer Requirements.