SVC single-phase high accuracy full automatic AC voltage stabilizer is one of the key products of our company. It consists of contact type self-coupling voltage regulator, servo motor, automatic control circuit and other parts. When the voltage of the network is not steady or the load varies, the automatic sampling control circuit will make a signal to drive servomotor to adjust the position of carbon brush of the self-coupling voltage regulator so as to have the output voltage regulated to the rating and to obtain the steady state.