DIRECT CURRENT ARC CURRENT DETECTION SENSOR FOR INSTALLATION IN LARGE-CAPACITY DIRECT CURRENT CIRCUIT AND DIRECT CURRENT ARC DETECTION DEVICE USING SAME

WIPO Patent Application WO/2023/085536

A1

The present invention relates to a direct current arc current detection sensor for installation in a large-capacity direct current circuit and a direct current arc detection device using same, which may be employed in a large-capacity direct current circuit, concurrently measure a direct current arc current and a direct current, and detect a direct current arc signal in a frequency band of 100 kHz or more. In order to solve the above-described problem, the direct current arc current detection sensor for installation in a large-capacity direct current circuit according to the present invention comprises: a core formed in an annular shape having an inner diameter of a predetermined diameter; a coil wound around the core; and a band-pass filter installed on the coil, wherein a direct current circuit is installed to penetrate the core so that a direct current arc signal is configured to be detected through the coil and the band-pass filter is configured to block a signal in a frequency band of 100 kHz or less and detect a signal in a frequency band of 100 kHz or more.

LEE SANG KYU (KR)
KIM YONG JOO (KR)
LEE KI DUK (KR)
LEE JIN (KR)
LEE JIN HAN (KR)

PCT/KR2022/006252

May 19, 2023

May 02, 2022

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O&M KOREA CO LTD (KR)

G01R31/12; G01R15/20; G01R19/00; G01R19/252; G01R23/165; G01R31/14

WO2019159582A1

2019-08-22

KR102148461B1	2020-08-26
KR20210084817A	2021-07-08
JP2011164008A	2011-08-25
JP2015145847A	2015-08-13

SONG, In Kwan (KR)

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