DJW/sJw series single phase/three phases micro computer non conlact compensated power vollage regulator is introducinginternationallatest technique , it combines with advanced winding compensation method and non contact switch, microcomputercontrol of ac vollage regulator technique in a body , with high efficiency saving energy quick adjustment automatically three phasesbalance , no mechanical failure and wear of carbon brush , it designed with time delay over voltage undervoltage alarm protection in the meanwhile , the ac voltageregulator breakthrough to solve both the system and devices in transient process ofrunning on noncontact switch eifecting the damage of common mode current shock and over voltage.the strong instantaneous overload ability . thusgreatlyincrease the reliability ofthe system operation