I am faced with constant under voltage problem. The voltage is between 180 - 210V.
What type of equipment should I use so that I can have constant 220V (or near to constant +-5%) voltage at the output, when the input voltage is between 180-210V. Input voltage variations are slow (the voltage is stuck on some level for several hours).
My thought was APC Line-R 1200 (LE 1200I). Is this unit suitable for this problem?