| 摘要 |
PURPOSE:To enhance the dielectric strength between a coil conductor and a shielding conductor of the winding for an electric induction apparatus when the disk type coil section wound around with the coil conductor from the outside toward the inside and the disk type coil section wound around with the coil conductor from the inside toward the outside are to be laminated alternately in the axial direction by a method wherein the insulatedly coated shielding conductor having a conductive layer or a semiconductive layer on the outside is interposed between them. CONSTITUTION:When the disk type coil section 101 converted the outside circumference with the insulation layer 105 consisting of an electrically insulating paper after the coil conductor is wound around from the outside toward the inside, and the disk type coil section 101 applied with the insulation layer 105 on the outside circumference after the coil conductor is wound around from the inside toward the outside similarly, are to be laminated mutually in the axial direction to form the winding for electric induction apparatus, lamination is performed as follows. Namely, the shielding conductor 104 covered the outside circumference with the conductive layer or the semiconductive layer 106 is interposed between the sections 101 thereof. Accordingly middle potential of the mutually adjoining coil sections 101 is generated in the conductive layer 106, and the withstand voltages of the conductors 101, 104 are enhanced. |
