| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cooling structure in a stationary induction apparatus, composed of discoid coils, which permits cooling performance to be increased over a conventionally available one; and a stationary induction apparatus having the cooling structure. <P>SOLUTION: In a cooling structure of a stationary induction apparatus comprised of discoid coils 31 and 32 which have a different coil-to-coil distance between the inner and the outer peripheries and which are laminated via an insulating plate 101, there are provided duct pieces 102-1 and 102-2 forming coolant passages 181 and 182 interposed between the discoid coils and the insulating plate, which have a constant thickness in a single unit and come in plural types having different thicknesses between different types. The duct pieces differing in thickness are disposed in a radial direction in order for the heights of the coolant passages to differ in the radial direction. <P>COPYRIGHT: (C)2012,JPO&INPIT |
