Abstract

The study deals with magnetic shields for distribution systems mainly devoted to medium voltage/low voltage sub-station. In the category of passive system, a new multilayer shielding plate is presented. The main purpose of the proposed solution is the reduction of the gap between the ferromagnetic sheets by a proper overlapping in order to reduce the local leakage fluxes. Plates characterised by different conductive and ferromagnetic thicknesses have been realised and tested. The effect of the welding of the conductive part is finally analysed.

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