A servo motor-controlled voltage stabilizer, or SCVS, produces an almost constant output voltage despite varying input voltage. Electronic Circuit controls and operates the servo motor, which drives the auto transformer and then regulates the output of the boost transformer. We provide SCVS starting at 10KVA and up that are both oil and air cooled. 1. Even in extreme circumstances with significant input voltage volatility, it produces reliable output. 2. Increases plant productivity 3. Voltage that can be adjusted 4. Increase the equipment's lifespan or duration.