GAS INSULATED SWITCHGEAR

摘要

A 1·1/2CB system gas insulated switchgear which can reduce the installation space while ensuring the maintenance/inspection performance. Partial units (I-III) are formed by connecting an instrument current transformer and a disconnector, sequentially, with upper and lower branch lead-out ports led out horizontally in the same direction from the side of a vertical circuit breaker. The partial units are interconnected in parallel and line side apparatuses are branched from the adjoining partial units thus constituting the whole unit. The adjoining partial units are connected in series by connecting the disconnectors through a connection bus. The line side apparatus is arranged oppositely to the circuit breaker while holding the disconnector therebetween. A plurality of such whole units are provided and the opposite ends of each whole unit are connected, respectively, with main buses arranged vertically while holding the disconnector therebetween.