UPS Technology and Operation

What is a UPS?

UPS is the abbreviation for Uninterruptible Power Supply. In very simply terms a UPS is a power conditioner with a battery. The battery makes it possible to offer protection against power failure / black outs.

Generally there are two types of systems available in the market today – Offline / Standby and Online

A UPS will consist of three key elements:-

  1. Rectifier / Charger– takes the incoming AC supply and converts it to DC to trickle charge the DC battery and where applicable feed the inverter.
  2. Battery– to store the DC energy delivered from the rectifier/charger
  3. Inverter– converts DC from the battery to a regulated AC voltage to feed the critical load.