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Apparatus and method for fault detection and location determination

US8941387B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8941387-B2
Application numberUS-90281910-A
CountryUS
Kind codeB2
Filing dateOct 12, 2010
Priority dateOct 12, 2010
Publication dateJan 27, 2015
Grant dateJan 27, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

An electrical waveform is received over an electrical power line. A plurality of nominal electrical parameters are determined for the electrical power network and the plurality of nominal electrical parameters are associated with a state of the electrical power network in the absence of at least one transitory electrical fault in the network. Subsequently, a plurality of electrical parameters of the electrical waveform are sampled when the at least one transitory electrical fault exists in the network. A plurality of inductances are determined based at least in part upon a comparison of the nominal electrical parameters and the plurality of sampled electrical parameters. The plurality of inductances are representative of inductances present in the network when the at least one transitory electrical fault exists in the network. The plurality of inductances are analyzed to determine a distance and/or direction to the at least one electrical fault.

First claim

Opening claim text (preview).

What is claimed is: 1. A method for determining the distance to electrical faults in electrical power networks, the method being accomplished in the time domain, the method comprising: receiving a plurality of three-phase, sinusoidal electrical waveforms over a plurality of electrical power lines in an electrical power network; determining a plurality of nominal electrical parameters for the electrical power network having a source voltage, the plurality of nominal electrical pa…

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Frequently asked questions

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What does patent US8941387B2 cover?
An electrical waveform is received over an electrical power line. A plurality of nominal electrical parameters are determined for the electrical power network and the plurality of nominal electrical parameters are associated with a state of the electrical power network in the absence of at least one transitory electrical fault in the network. Subsequently, a plurality of electrical parameters o…
Who is the assignee on this patent?
Kim Charles, Univ Howard, San Diego Gas & Electric Co
What technology area does this patent fall under?
Primary CPC classification G01R31/086. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).