INDUCTANCE COIL AND METHOD OF ITS FABRICATION Russian patent published in 2014 - IPC C25D11/00 H01F5/02 H01F27/28 

FIELD: electricity.

SUBSTANCE: invention relates to devices of electrical equipment, namely to fabrication of inductance coils for a high-voltage electric equipment, power low-voltage transformers, transformers of distributive networks. A coil is made by winding on the conductor mandrel. Before winding of the conductor on the mandrel an isolation coating is formed. The conductor winding on the mandrel is performed by a sequential reeling of specified amount of coils, to get a necessary amount of rows. The conductor, flat from the side of the mandrel surface is used. The first row is winded under the specified angle of winding α, and at starting of a new row of coils the conductor is deformed in two planes. In the plane, perpendicular to the axis of winding, the conductor is bent towards the direction from the reeled row. In the plane, parallel to the winding axis, the conductor is bent at the angle equal to double angle of winding.

EFFECT: increase of resistance to electrical breakdown.

19 cl, 2 dwg, 6 ex