| 摘要 |
PURPOSE:To prevent dielectric breakdown between a rotor and armture winding by arranging conductive linear bodies to an insulating cylinder for supporting armature winding so as not to make up a closed circuit while grounding one ends of the linear bodies and electrostatically shielding the bodies. CONSTITUTION:Superconducting winding 2 generating high magnetic flux is mounted to a superconducting rotor 1, and the whole is grounded. Armature winding supporting cylinders 4 consisting of insulating materials are oppositely disposed on an outer circumferent of the superconducting rotor 1 through a void 3, and armature winding 5 is installed on the surfaces of the cylinders. A ground insulating layer 6, a stator core 7 grounded and a stator frame 8 are arranged toward the outer diameter directions successively. Thin conductor wires 9 are zigzag disposed on the surfaces of the outer circumferences of the supporting cylinders 4 in shapes that the wires extend along the axial direction, are folded at end sections and extend to the opposite side in the axial direction again, and the one ends are grounded and the other ends are opened. Thus, an interlinkage area of the rotor to high magnetic flux is decreased, an opened loop is formed to eddy currents and local heating can be removed. |
