SIGNAL COUPLING APPRATUS FOR POWER LINE COMMUNICATION

摘要

PURPOSE: A signal connection device for power line communication is provided to couple power signal and power line communication signal flowing through a power line in a contactless method using electromagnetic induction. CONSTITUTION: A housing prepares a groove in the center of itself. A power line penetrates through the groove. A contactless interface unit is accommodated in the housing. The contactless interface unit induces a power signal or a power line communication signal according to electromagnetic induction from the power line. The contactless interface unit includes first current transformer (140) and second current transformer (150). The second current transformer induces a power line communication signal.