Apparatus for power measuring and calculating Fourier components of power line parameters
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United States of America Patent
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Feb 2, 1988
Issued Date -
N/A
app pub date -
Mar 20, 1986
filing date -
Apr 13, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Self contained radio transmitting state estimator modules are mounted on power conductors on both sides of power transformers in electrical substations and on power conductors at various places along electrical transmission lines. They are electrically isolated from ground and all other conductors. These modules are capable of measuring current, voltage, frequency and power factor (or the fourier components thereof) the temperature of the conductor, and the temperature of the ambient air. The modules transmit these parameters to local receivers. The receivers are connected by an appropriate data transmission link, to a power control center which allows determination of the state of the power system. The module measures the Fourier components of voltage and current over a number of cycles and transmits the components to the local receiver.
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