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Electric shunt induction winding and automatic lamination cutting machine therefore

  • US 4,453,150 A
  • Filed: 05/12/1981
  • Issued: 06/05/1984
  • Est. Priority Date: 05/12/1980
  • Status: Expired due to Fees
First Claim
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1. An electric shunt induction winding for an electric power transport line, said winding having a magnetic core with an electric coil and a magnetic barrel winding round said coil to close the magnetic circuit, said magnetic core comprising a vertical stack of iron disks separated from one another by air gaps, each disk having a central hole and being constituted by juxtaposing a plurality of sector-shaped portions, each sector-shaped portion comprising a succession of magnetic laminations situated in vertical planes which are parallel to the axis of the electric winding, each said sector-shaped portion being formed by a first bundle of laminations all of identical length and by a second bundle of laminations of regularly decreasing lengths from one sheet to the next, the improvement wherein the direction in which the laminations are rolled in the mill is perpendicular to the axis of the winding.

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