UPS topologies: standby, line interactive, online UPS systems

Explains the different types of UPS backup power systems, including line interactive, standby (offline) and online UPS topologies. Adjusts power voltage using a variac to demonstrate how a UPS supports a critical IT load. Live demonstration shows how on-line and line-interactive UPS technologies operate under varying power conditions. Check out how the line-interactive UPS technology will experience voltage drops, but the on-line double-conversion UPS technology can handle the same power variations without voltage drops.