Powerware 3105 is pure standby UPS with no power conditioning other than a few small MOV's. It produces square wave output when on battery, otherwise passes incoming power directly to load.
Do you have communication lines between computers? If so, make sure you have common ground between the power & communication side. Single phase UPS typically have small MOV's on front end & they fail in a few months when subjected to industrial environment. If grounding is ok, try a TVSS on...
I have a new installation with 480V, 225kva UPS feeding (2) 225kva isolation xfmrs (in series) then (5) 225A 208/120V panelboards. The panels deliver power to 800 security cameras, power supplies & monitors. We are experiencing screen shake & horizontal hold/ghosting. It appears that cameras...
