Apparatus and method for locating ground faults

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United States of America Patent

PATENT NO 4546309
SERIAL NO

06416977

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An apparatus for locating ground faults on direct current control systems includes a low frequency current generator having a variable output, a Hall-effect current probe for detecting the low frequency current produced by the generator, a filter and amplifier connected to the output of the Hall-effect current probe for identifying and amplifying the low frequency signal and a read-out element connected to the output of the amplifier to indicate the relative magnitude of the low frequency signal. A method for locating ground faults on direct current control system while the system is energized is described.

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Patent Owner(s)

Patent OwnerAddress
COMMONWEALTH EDISON COMPANY A CORP OF ILLONE FIRST NATIONAL PLAZA CHICAGO IL 60690

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Burkum, Merlin E Elmhurst, IL 6 527
Kang, Chang E DeKalb, IL 1 28
Lowry, L Alan Glen Ellyn, IL 1 28

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