HIGH VOLTAGE WALL BUSHING Russian patent published in 2010 - IPC H01B17/28 

FIELD: electricity.

SUBSTANCE: high-voltage wall bushing (1) includes conductor (2) and body (3), surrounding conductor (2). Besides the body (3) contains filler plate (4), treated with insulated flong material (6). The filler plate (4) is wound as a spiral around longitudinal axis (A) of the conductor (2) so that a number of adjacent layers is formed. In addition, the body (3) contains levelling elements (5) on the corresponding radial distances from longitudinal axis (A). The levelling elements (5) are represented with conductive layers (51) having holes (9), through which matrix materials may go through (6). The levelling elements (5) are located in the body (3) apart from the filler plate (4). If is preferable if conductive layers (51) are made in the form of mash or lattice with holes, or perforated. The holes (9) are manufactured so that they can be filled in with matrix material (6). It is preferable to use resin (6) with filler particles. Method of wall bushing manufacture includes spiral winding around conductor (2) or around pilot pin forming a number of adjacent layers. After that filler plate is treated with insulating matrix material and levelling elements represented with conductive layers are put into body 3.

EFFECT: accelerated process of bushing manufacture.

25 cl, 6 dwg