GAS-INSULATED HIGH-VOLTAGE ELECTRICAL APPARATUS WITH OVERPRESSURE RELIEF

Abstract

Gas-insulated high-voltage electrical switchgear comprising a gas-insulated enclosure (1) comprising: - a switching means (2) with at least one switching / connecting, disconnecting, and earthing function; - a protective element (3) inside a housing (4) accommodated in a removable fuse holder (5), said housing (4) being mounted between the switching means (2) and at least one busbar (7); and - a plug (9) forming part of the same removable fuse holder (5) and sealing the housing (4) by means of an elastic element (10). The switchgear comprises an overpressure relief device (8) between the interior space (13) of the housing (4) and the exterior (14) of the enclosure (1). The elastic element (10) of the plug (9) is located where the device (8) is installed.