Application of voltage sag mitigation devices in industry:

In the last 5 to 10 years there has been a large increase in the focus upon power quality. Through education by professional organizations, through specialist focus groups within large industrial plants and through International PQ conferences. Due to this increased focus the power quality world wide has actually improved significantly such that now, power outages and blackouts are rare. Hence there is now an increased focus on second order problems. These can be defined as sags, brown outs, surges, dips, power factor, harmonics, flicker, etc. So where previously the main solution to power problems was to apply a UPS (uninterruptible power supply), now there are many more options to mitigate the "2
^nd
order" problems. This paper describes several actual field installations of a new modern solution, an AVC (active voltage conditioner) applied to different industrial processes.