What are the different types of UPS available?
UPS systems are classified into different types based on their topology, or, electrical design used. These are Offline UPS (also known as Standby UPS), Line-interactive UPS, and Online UPS (also known as Double Conversion Online UPS). The three topologies differ mainly in the level of power conditioning they provide when operated on utility power and on battery power. These topologies in the order of increasing quality of power they provide are: Offline, Line-interactive and Online.
Learn more about how an offline UPS works here
Learn more about how a line interactive UPS works here
Learn more about how an online UPS works here
See a comparison of the different types of UPS here