| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas insulated switchgear capable of reducing time and cost required for maintenance periodically performed after installation of the gas insulated switchgear. SOLUTION: This gas insulated switchgear has an operating apparatus box storing an operating apparatus to perform a switching operation of a contact of its main circuit (contact of a breaker for instance), and in this operating apparatus box 1 storing the operating apparatus 2 of a metal material having good lubricating characteristics without grease, a dehumidifier 3 to dehumidify moisture in the air inside and exhaust it outside, and a humidity detector 4 to detect the humidity in the operating apparatus box 1 are provided. |
