Bbc Brown, Boveri & Company, Limited

Jan G Vit

Andreas Plessl

Karl Munzinger

Denis Poole

Jorg Peter

A cast housing is provided for carrying switchgear components, such as a power switch or circuit-breaker, a busbar, a disconnecting switch and a grounding switch and bushings, to a multi-phase medium-voltage switchgear. It is substantially cuboid-shaped and is filled with an insulating gas. This cast housing is designed such that it may be used without substantial modifications in all possible designs of switchgear for a given switchgear voltage. This is achieved by the cast housing having large openings at the front wall and at the side surfaces adjoining the front wall and having a comparatively small opening at each of the rear walls and the top and bottom surfaces for each phase of a switchgear having from one to four phases. At the same time, the supply terminals of the phases of the power switch or circuit-breaker can be brought through the opening located in the front wall into the interior of the cast housing, in each case the phase conductors of the busbar can be led through the openings located in the side walls and either a bushing conductor, directed along a mid-axis of this opening, can be led through each of the remaining openings to a further live switchgear component, or this opening can be closed off by a cover or a cast wall.

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Turgi, Switzerland

Jan G Vit