BROADBAND OVER POWERLINES (BPL) COUPLING SYSTEM

摘要

An inductive coupler 33 provides an interface between a power line and a communication device which communicates vi the power line The power line operates at a potential between four and 140 kilovolts while accommodating a current havi a frequency between 45 and 65 hertz, and the communication device operates substantially at ground potential The inductive coupler includes a split ferrite core 10, 13 having material selected to provide a substantially flat frequency response between one and 50 megahertz The coupler also includes a clamping mechanism 17, 27 allowing the inductive coupler to clamp around the power line or around a utility line connected to the power line Further, the coupler includes a least one lead 77 for communicatively connecting the inductive coupler to the communication device The inductive coupl forms an air gap 8 when the inductive coupler is clamped If the coupler is insulated, the insulation is also used for the air gap.