SVC series full automatical voltage stabilizer consists of contact autotransformer, servomotor, automatic control circuit etc. When grid voltage or load is changed, automatically sampling control circuit sends a signal to drive servomotor, adjust the position of the self coupling voltageregulator for carbon brush, and make the output voltage rating be stable. This product has the waveform distoptionless,reliable performance, long term operation and other characteristics, such as time delay, over voltage, undervoltage protection. It can be widely used in electricty which need stable voltage, it is an ideal voltage stabilized supply to ensure the normal operation of electrical equipment.