High voltage insulation monitoring sensor

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United States of America Patent

PATENT NO 8466690
APP PUB NO 20080309351A1
SERIAL NO

12065721

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Abstract

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A sensor for condition monitoring the high voltage insulation of an electrical, generation, transmission or distribution system and/or an item of plant is described. The sensor comprises an impedance measurement unit that connects directly, via a single point of connection, to the electrical system to be tested. The electrical components of the impedance measurement unit are arranged so that high frequency partial discharge signals and low frequency power cycle information signal are preferentially transmitted through separate branches. Analysis of these separated signals thus enables extraction of information about the insulation of the electrical system being monitored. Safe operation of the sensor for users is also achieved through an opto-electronic circuit being employed to control the impedance measuring unit.

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Patent Owner(s)

Patent OwnerAddress
UNIVERSITY COURT OF GLASGOW CALEDONIAN UNIVERSITYCOWCADDENS ROAD CITY CAMPUS GLASGOW G4 0BA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
McMeekin, Scott G Glasgow, GB 1 52
Nesbitt, Alan Glasgow, GB 2 58
Stewart, Brian G Wisuan, GB 9 160

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