Systems and methods for performing differential measurements in an electrical system
First Claim
1. A system for performing differential measurements in an electrical system, comprising:
- a first meter having a first time reference;
a second meter having a second time reference, the second time reference being synchronous with the first time reference;
the first and second meters being configured to use the first and second time references, respectively, to take time synchronized measurements of the electrical system; and
a processor that receives the time synchronized measurements from the first and second meters and compares the time synchronized measurements to determine one or more electrical characteristics of the electrical system, the processor being further configured to correct for time variation between the time synchronized measurements.
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Abstract
In accordance with the teachings described herein, systems and methods are provided for performing differential measurements in an electrical system. A first meter may be used that has a first time reference. A second meter may be used that has a second time reference, wherein the second time reference is synchronous with the first time reference. The first and second meters may be configured to use the first and second time references, respectively, to take time synchronized measurements of the electrical system. A processor may be used to receive the time synchronized measurements from the first and second meters and compare the time synchronized measurements to determine one or more electrical characteristics of the electrical system. The processor may also be used to correct for any existence time variation between the time synchronized measurements.
54 Citations
24 Claims
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1. A system for performing differential measurements in an electrical system, comprising:
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a first meter having a first time reference;
a second meter having a second time reference, the second time reference being synchronous with the first time reference;
the first and second meters being configured to use the first and second time references, respectively, to take time synchronized measurements of the electrical system; and
a processor that receives the time synchronized measurements from the first and second meters and compares the time synchronized measurements to determine one or more electrical characteristics of the electrical system, the processor being further configured to correct for time variation between the time synchronized measurements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for measuring one or more electrical characteristics of an electrical system, comprising:
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synchronizing a first time reference for a first meter with a second time reference for a second meter;
using the first meter to measure one or more electrical characteristics at a first point in the electrical system to generate a first time-synchronized measurement;
using the second meter to measure the one or more electrical characteristics at a second point in the electrical system to generate a second time-synchronized measurement;
transferring the first time-synchronized measurement and the second time-synchronized measurement to a processor;
correcting for any existent time variation between the first time-synchronized measurement and the second time-synchronized measurement; and
comparing the first time-synchronized measurement with the second time-synchronized measurement to determine a differential electrical characteristic between the first point and the second point in the electrical system. - View Dependent Claims (20, 21, 22, 23)
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24. A measurement system for an electrical system, comprising:
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a first meter having a first time reference;
a second meter having a second time reference, the second time reference being synchronous with the first time reference;
the first and second meters being configured to use the first and second time references, respectively, to take time synchronized measurements at two or more points in the electrical system. means for correcting for any existent time variation between the time synchronized measurements; and
means for comparing the time synchronized measurements to determine one or more differential electrical characteristic between the two or more points in the electrical system.
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Specification