Fault-type identification in an electric power delivery system using composite signals

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United States of America Patent

PATENT NO 10859639
APP PUB NO 20200103452A1
SERIAL NO

16404990

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Fault-type identification using composite signals composed from symmetrical component voltages and currents is described herein. Angular differences between negative-sequence composite signals and zero-sequence composite signals are used to determine a single-line-to-ground fault, and the faulted phase. Angular differences between positive sequence voltage and negative-sequence composite signals are used to determine a multiple-line-to-ground fault, and the faulted phases. Negative-sequence composite signals and zero-sequence composite signals are calculated using combinations of negative-sequence currents and voltages and zero-sequence voltages and currents, respectively.

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Patent Owner(s)

  • SCHWEITZER ENGINEERING LABORATORIES, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kasztenny, Bogdan Z Markham, CA 71 1038

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