Isolation monitor

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United States of America Patent

PATENT NO 9046559
APP PUB NO 20130300430A1
SERIAL NO

13467834

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Abstract

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An isolation monitor is disclosed in which a switchable bias voltage is imposed on a chassis ground. An isolation voltage is measured when a bias voltage is applied. When there are no electrical faults, the isolation voltage swings up and down to known values. When a fault occurs, the isolation voltage will not to swing to the known values, and thus the isolation resistance can be measured and alarm generated if the isolation resistance falls below a threshold value.

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Patent Owner(s)

Patent OwnerAddress
CURTIS INSTRUMENTS INC200 KISCO AVENUE MT KISCO NY 10549

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bowman, Scott Fairfax, US 1 47
Cochoy, John Brentwood, US 3 86
Lindsay, Ryan Brentwood, US 5 89
White, Roger Livermore, US 13 656

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