DC electrical circuit protection apparatus and ARC detection method

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11277000
APP PUB NO 20190296539A1
SERIAL NO

16304398

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Abstract

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In a DC feed system configured by a plurality of DC electrical circuits being combined, when an arc fault occurs, it is difficult to identify a DC electrical circuit in which an arc has occurred. For this reason, a DC electrical circuit protection apparatus includes: a plurality of DC electrical circuits, each of which has a current sensor provided in at least one of a positive or a negative electrical path and has arc noise absorbing mechanism on the upstream side of the current sensor; and an arc detection device which compares respective arc noise signal strengths of the DC electrical circuits from current signals detected by the current sensors of the DC electrical circuits, and based on the signal strengths, identifies a circuit in which an arc has occurred, wherein a DC electrical circuit in which an arc has occurred is identified.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI ELECTRIC CORPORATIONTOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kanemaru, Makoto Chiyoda-ku, JP 11 17
Mori, Mitsugi Chiyoda-ku, JP 3 8
Tsukima, Mitsuru Chiyoda-ku, JP 18 176

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