GAS-INSULATED SWITCHGEAR

摘要

A ring bus system gas-insulated switchgear in which installation space can be reduced while ensuring inspection maintainability and the cost can also be reduced. A circuit breaker unit is formed by connecting an instrument current transformer and a disconnector, respectively, with upper and lower branch openings led out horizontally from the side face of a vertical circuit breaker in the same direction and the plurality of circuit breaker units are juxtaposed. A zigzag bus route is formed vertically by connecting the adjoining circuit breakers through a connection bus and the circuit breaker units located at the opposite ends are connected straight by a link bus. A line side apparatus is arranged oppositely to each circuit breaker unit with a disconnector put therebetween.