SBW three phase servo motor type automatic voltage stabilizer is a traditional automatic voltage regulator based on servo motor transformer and carbon brush regulation. CPU control based integrated circuit board adopt seperative regulation of each phase in order to achieve maximum voltage balance of three phase output. SBW series is a mature design AVR with very good competitive edge in cost. SBW series is ideal for application on electrical equipments such as production lines, lift, automation equipments, laser euipments, industrial robots,medical equipments air conditioner, all kinds Of electrical home appliances and others in factories, transportation system, telecommunication system, railway system, medical equipments, commercial lighting etc.