Since last few years, I have been running my AVR and PC from an APC UPS. I have had no issues so far. Last month i got an dell 24 inch monitor. Connected to the same UPS (AVR and monitor to the UPS).
Every now and then during the day, the monitors goes off and comes on. This is in line with some voltage/power fluctuation.
There are 2 kinds of power fluctuation i encounter
1. When this hits I usually have no issues and my UPS handles it (which is 80% of the time).
2. When this hits, my monitor goes off and comes on after a second (I haven't observed if the monitor switches off). I think, this is usually in line with some one near my house using welding machines or something equivalent. I see 20-30V drops - it comes and goes in quick successions. Even my 50inch plasma, which i have connected to the surge protector of the UPS has started to have its screen flicker and jump around. This happens only during the day - 8 AM - 6 PM.
So I am not sure what I need for this. I humbly request people who know what the issue is to reply.
Thanks