INVERSE CURRENT INJECTION-TYPE DIRECT CURRENT BLOCKING DEVICE AND METHOD USING VACUUM GAP SWITCH

WIPO Patent Application WO/2018/117591

A2

Disclosed is an inverse current injection-type direct current blocking device and method using a vacuum gap switch. The direct current blocking device comprises: a main electric conduction unit including a main blocking switch that is a mechanical switch; an inverse current power source unit which is connected to an input port of the main electric conduction unit and generates a preconfigured inverse current; and an inverse current electric conduction unit for supplying an inverse current to an output port side of the main electric conduction unit. The inverse current power source unit also comprises: a first inverse current capacitor charged by voltage applied to the input port of the main electric conduction unit; a polarity reverse inductor for reversing a polarity of the first inverse current capacitor; and an inverse current power source unit switch for performing circuit connection to cause the polarity reverse inductor to reverse the polarity of the first inverse current capacitor.

LEE WOO YOUNG (KR)
PARK HAE YONG (KR)
LEE GYEONG HO (KR)
PARK SANG HUN (KR)
BAE CHAE YOON (KR)
SIM JUNG WOOK (KR)
JANG HYUN JAE (KR)

PCT/KR2017/015015

June 28, 2018

December 19, 2017

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KOREA ELECTRO TECH RESEARCH INSTITUTE (KR)
LSIS CO LTD (KR)

H01H33/66; H01H33/59

B&IP-JOOWON PATENT AND LAW FIRM (KR)

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