公开(公告)号：US11233385B2

公开(公告)日：2022-01-25

申请号：US16966313

申请日：2018-11-21

Applicant: LS ELECTRIC CO., LTD.

Inventor： Seungjin Ham ,  Kihwan Oh ,  Jinyoung Park

IPC: H02H1/00 ,  H02H3/16 ,  H01H83/02 ,  H01H83/04 ,  H01H71/04 ,  H01H71/12

Abstract: The present disclosure relates to an earth leakage breaker and an arc detection apparatus attachable/detachable to/from the earth leakage breaker. An earth leakage breaker and an arc detection apparatus according to one embodiment of the present disclosure comprise: a body of the earth leakage breaker; and an arc detection module attachably/detachably coupled to the body of the earth leakage breaker so as to detect an arc current, wherein the arc detection module comprises: an arc detection unit connected to a first load side terminal of the body of the earth leakage breaker so as to detect an arc current flowing through a line; a control unit for determining an arc current on the basis of an arc detection signal delivered by the arc detection unit; and an output unit for outputting a signal or a current, according to a control signal of the control unit.