| 摘要 |
PURPOSE:To eliminate a separation of superconducting leads from impregnated resin thereby to stabilize the performance of a thermal permanent current switch by forming a boundary in a part in which the superconducting leads are wound, and inductively winding the leads of the sides of the boundary so that the polarity of magnetic fields of each side of the boundary becomes reverse. CONSTITUTION:Superconducting leads 2 wound on a bobbin 1 are inductively wound at both sides of a plate 4 of a boundary for longitudinally dividing the winding section. The plate 4 is provided between the leads of both sides of the boundary, and formed, for example, of a laminated cloth or film. Since the directions of currents are the same at the leads 2-a and 2-b, an attracting force is acted, but since the leads are supported by themselves, almost no stress is generated in an impregnating agent 3. Accordingly, a separation between the leads and the agent, and the crack of the agent do not occur to stabilize the performance. |
