公开(公告)号：US11049677B2

公开(公告)日：2021-06-29

申请号：US16472718

申请日：2017-12-19

Applicant: KOREA ELECTRO TECHNOLOGY RESEARCH INSTITUTE ,  LSIS CO., LTD.

Inventor： Woo Young Lee ,  Hae Yong Park ,  Gyeong Ho Lee ,  Sang Hun Park ,  Chae Yoon Bae ,  Jung Wook Sim ,  Hyun Jae Jang

IPC: H01H33/00 ,  H01H33/59 ,  H01H33/666 ,  H02H3/087

Abstract: The DC interrupting device includes a main current conduction unit including a main interrupting switch, which is a mechanical switch, a reverse current power supply unit connected to an input terminal of the main current conduction unit and configured to generate a predetermined reverse current, and a reverse current conduction unit configured to supply the reverse current to an output terminal of the main current conduction unit. The reverse current power supply unit includes a first reverse current dedicated capacitor charged by a voltage applied to an input terminal of the main current conduction unit, a polarity reversing inductor configured to reverse a polarity of the first reverse current dedicated capacitor, and a reverse current power supply unit switch configured to perform circuit connection such that the polarity reversing inductor reverses the polarity of the first reverse current dedicated capacitor.