When your voltage degrees are unstable (ie: power stays on, but the particular voltage level varies a great deal with the 220V common), then I believe that's the type of circumstance the place an AVR is useful. For large power models, dynamic uninterruptible power materials (DUPS) are occasionally utilized. A https://moonknightcreator60370.arwebo.com/56432617/a-secret-weapon-for-uninterruptible-power-supply-pdf