Power failure monitoring device of digital protection relay

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United States of America Patent

PATENT NO 9997048
APP PUB NO 20170032654A1
SERIAL NO

15215493

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Abstract

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Embodiments of a power failure monitoring device of a digital protection relay capable of preventing a relay operation error and a data loss by determining a power failure when an electric power voltage being detected is dropped to be equal to or less than a prestored power failure reference voltage to enable a controller to perform a power failure preparation operation are provided.

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Patent Owner(s)

Patent OwnerAddress
LSIS CO LTDANYANG-SI GYEONGGI-DO 14119

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jeon, Byung-Joon Gyeonggi-do, KR 1 1

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