GAS-INSULATED SWITCHGEAR AND CABLE WITHSTAND VOLTAGE TESTING METHOD FOR GAS-INSULATED SWITCHGEAR

摘要

Provided is a gas-insulated switchgear (1) provided with: a grounding switch-equipped disconnector (5) and a breaker (6) that are stored in a tank (2); and a charging terminal (9) that is connected to the grounding switch-equipped disconnector (5) and provided outside the tank (2) for grounding the grounding switch-equipped disconnector (5). One end of the breaker (6) is connected to a cable (8) outside the tank (2) so as to be electrically connectable. A grounding bar (10) is provided so as to be inserted into and connected with the charging terminal (9) in the horizontal direction with one end thereof serving as the rotational axis. The charging terminal (9) is grounded via a grounding conductor (11) connected to the rotational axis side. During withstand voltage testing of the cable (8), a testing terminal (31) is connected to the charging terminal (9), and a prescribed voltage is supplied from a testing power source (32).