Identifying one of a plurality of wires of a power transmission cable
First Claim
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1. An apparatus for enabling communication of a data signal via a power transmission cable, comprising:
- a first winding for coupling said data signal via a conductor of said power transmission cable; and
a second winding, inductively coupled to said first winding, for coupling said data signal via a data port.
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Abstract
There is provided an apparatus for enabling communication of a data signal via a power transmission cable. The apparatus comprises (a) a first winding for coupling the data signal via a conductor of the power transmission cable, and (b) a second winding, inductively coupled to the first winding, for coupling the data signal via a data port.
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Citations
63 Claims
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1. An apparatus for enabling communication of a data signal via a power transmission cable, comprising:
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a first winding for coupling said data signal via a conductor of said power transmission cable; and
a second winding, inductively coupled to said first winding, for coupling said data signal via a data port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 40, 41, 42, 43)
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28. A data communication network implemented over a power distribution system having a power transmission cable with a phase conductor, comprising:
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an inductive coupler for coupling a data signal via said phase conductor, and having a data port for further coupling of said data signal; and
a capacitive coupler, connected between said phase conductor and a ground, proximate to an end of said power transmission cable, for absorbing reflections of said data signal.
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39. A data communication network implemented over a power distribution system having a first segment with a first neutral conductor, and having a second segment with a second neutral conductor, comprising:
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a first coupler for inductively coupling a data signal via said first neutral conductor, and having a data port for further coupling of said data signal; and
a second coupler having a data port coupled to said data port of said first inductive coupler, and for inductively coupling said data signal via said second neutral conductor.
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44. A data communication network implemented over a power distribution system having a power transmission cable with a phase conductor, comprising:
an inductive coupler having a first port for coupling a data signal via said phase conductor, and having a second port for further coupling of said data signal. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 58, 59, 60)
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56. A data communication network implemented over a power distribution system having a phase conductor with a first segment on a first side of a switch and a second segment on a second side of said switch, comprising:
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a first capacitive coupler for coupling a data signal via said first segment, and having a data port for further coupling of said data signal; and
a second capacitive coupler having a data port coupled to said data port of said first capacitive coupler, and for coupling said data signal via said second segment, wherein a transmission of said data signal between said first segment and said second segment is maintained when said switch is opened.
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57. A method for identifying one of a plurality of neutral wires of a power transmission cable, comprising:
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applying a signal to a selected neutral wire, at a first point on said power transmission cable;
sensing a relative magnitude of said signal on each of said plurality of neutral wires at a second point on said power transmission cable that is remote from said first point; and
identifying said selected neutral wire from said relative magnitudes.
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61. A system for identifying one of a plurality of neutral wires of a power transmission cable, comprising:
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a receiver for sensing a signal from a selected neutral wire of said power transmission cable; and
an indicator of a magnitude of said signal, wherein said signal is applied to said selected wire at a first point on said power transmission cable, and said receiver senses said signal at a second point on said power transmission cable that is remote from said first point. - View Dependent Claims (62, 63)
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Specification