The H.T. Automatic Voltage Stabilizer is used to get stable input voltage, irrespective of the voltage received from electricity authorities. Recon`s Rectifiers & Controls manufactures H.T. Automatic Voltage Stabilizer. Recon`s Rectifiers & Controls is an ISO 9001:2008 certified company. The H.T. Automatic Voltage Stabilizer also prevents the transformer and other electrical equipment from getting overloaded. The variations of more than +/- 1% of the rated output voltage are sensed through solid state relay. This relay operates on 230 V, supply. It sends signals to the controlling servo voltage stabilizers motor, which drives the roller mechanism in a direction to bring voltage to the rated output voltage.