Current transformer assemblies

Details Current transformer assemblies Current transformer assemblies

H - Electricity

01

F

H01F 38/30 (2006.01) H02B 11/26 (2006.01)

Patent

CA 2213919

It is known for a current transformer assembly to have an annular transformer encompassing a conductor. In the present invention, the assembly has an electrically-insulative housing bolted to a wall of equipment through which a busbar emerges. The housing has a rear wall with an aperture through which the busbar extends, the transformer being located in a recess between the rear wall of the housing and the front of the equipment wall. The housing is open on its front and has a removable cover plate. The busbar is bolted to the upper surface of a plinth in the housing, which also supports the end of a cable entering through the front wall and bolted to the busbar.

On connaît les transformateurs de courant à circuit magnétique annulaire autour d'un conducteur. Selon la présente invention, le transformateur comporte un boîtier isolant boulonné à une paroi d'équipement traversée par une barre omnibus. La paroi arrière du boîtier comporte une ouverture traversée par la barre omnibus, le transformateur étant logé dans un évidement entre ladite paroi arrière et le devant de l'équipement. Le boîtier est ouvert sur le devant, l'ouverture étant fermée par une plaque amovible. La barre omnibus est boulonnée à la face supérieure d'un ressaut du boîtier qui supporte également l'extrémité d'un câble traversant la paroi avant et boulonné à la barre omnibus.

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