Servo Voltage Stabilizer is meant to correct Low or High Mains Voltage and maintain the Load Voltage at ± 1 % of 230 or 240 Volts. Voltage adjustment is actuated by a combination of Auto-Variable and Series Transformers by adding or subtracting a small voltage to Incoming Mains, thereby achieving a constant output voltage.This action is continuous, without any break, and is effected through a Micro-controller based Control Mechanism. Single Phase Air-Cooled Servo Voltage Stabilizers are suitable for Small and Medium Capacity loads of 1-25 KVA. https://www.classifiedads.com/farm_equipment/c2b69f5mx19c9