Three Phase Servo Voltage Stabilizer ensures controlled flow of voltage which protects domestic and commercial electrical and electronic system from power fluctuation. The Servo Voltage Stabilizer is equipped with fully automatic IC based solid state, glass epoxy control card for easy on line serviceability. The Servo Voltage Stabilizer is suitable for three phase unbalanced or balanced supply as well as unbalanced or balanced load. Three Phase Servo Voltage Stabilizer functions in a temperature range varying from -15 degree C to 50 degree C.