Gas-insulated switchgear device

Abstract

This gas-insulated switchgear device (100) comprises: a tank (1) in which an insulating gas is sealed and which comprises in the interior thereof a current path connecting a first external conductor (15) that has a DC current input thereto and a second external conductor (16) that outputs the DC current; a first cutoff unit (10) and a second cutoff unit (20) which are installed along the current path in the tank (1); and a resistor (70) which is installed in parallel with the second cutoff unit (20), wherein, in a feed operation, the first cutoff unit (10) alone is first brought into a feed state, and the first cutoff unit (10) and the second cutoff unit (20) are brought into the feed state after a preset period of time has elapsed.

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