Sensing current flowing through a power line
First Claim
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1. A method comprising:
- transducing a power frequency current flowing through a power line, into a power frequency voltage, via an inductive coupler that couples a communications signal from said power line;
separating said power frequency voltage from said communications signal; and
determining a value of a parameter of said power frequency current from said power frequency voltage.
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Abstract
There is provided a method for measuring a parameter of a power frequency current being carried by a power line. The method that includes (a) transducing a power frequency current flowing through a power line, into a power frequency voltage, via an inductive coupler that couples a communications signal from the power line, (b) separating the power frequency voltage from the communications signal, and (c) determining a value of a parameter of the power frequency current from the power frequency voltage. There is also provided a system and an apparatus for measuring the parameter.
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Citations
20 Claims
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1. A method comprising:
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transducing a power frequency current flowing through a power line, into a power frequency voltage, via an inductive coupler that couples a communications signal from said power line; separating said power frequency voltage from said communications signal; and determining a value of a parameter of said power frequency current from said power frequency voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system comprising:
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an inductive coupler that (a) couples a communications signal from a power line, and (b) transduces a power frequency current flowing through said power line, into a power frequency voltage; a filter that separates said power frequency voltage from said communications signal; and a processor that determines a value of a parameter of said power frequency current from said power frequency voltage. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An apparatus comprising:
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a filter that separates a power frequency voltage from a communication signal that is coupled, via an inductive coupler, from a power line that carries a power frequency current; and a processor that determines a value of a parameter of said power frequency current from said power frequency voltage. - View Dependent Claims (18, 19, 20)
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Specification