APPARATUS AND METHOD FOR REDUCING NEUTRAL LINE CURRENT USINGLOAD SWITCHING METHOD

摘要

An apparatus for reducing a neutral current using a load switching method in accordance with the present invention includes a phase current detection unit for detecting a phase current in each of a top stage power line and a bottom stage power line, a load switching unit for changing an arrangement of a load connected each phase of at least one among the top stage power line and the bottom stage power line and a control unit for controlling the load switching unit so as to compare a strength of the detected phase current of the top stage power line with a strength of the detected phase current of the bottom stage power line and to change the arrangement of the load connected to each phase of at least one among the top stage power line and the bottom stage power line according to the comparison result. Therefore, the neutral current reduction apparatus in accordance with the present invention is capable of being easily installed and drastically reduced in costs in comparison with a conventional method and is capable of drastically improving the failure and erroneous operation prevention effects of devices due to supply reliability and neutral current of the power distribution system by actively and rapidly coping with the load change according to the change of the load.