Abstract: A reactor part includes at least a winding and a magnetic substance core, in which the core includes a pair of winding portions around each the winding is wound, and a non-winding portion around which no winding is wound, wherein a cross-sectional area in a direction orthogonal to a magnetic path of the non-winding portion of the core is made smaller than a cross-sectional area in a direction orthogonal to a magnetic path of the each of winding portions.

Abstract: The present invention provides a fixing structure and a fixing member for a stationary induction apparatus, which can easily and inexpensively be assembled with a small number of constituent elements, and which are capable of reliable fixation. A fixing portion 4 which fixes the core 2 of a reactor to a case 1 is provided. The fixing portion 4 has a slide block 40 in contact with the core 2; a fixing bolt 42 which fixes the slide block 40 with respect to the case 1; and a slide base 41 provided between the slide block 40 and the case 1, and fixed to the case 1 together with the slide block 40. The slide block 40 and the slide base 41 have inclined faces 40d, 41b in mutual contact, and the slide block 40 has a first impelling portion 40a which impels the core 2 in a vertical direction and a second impelling portion 40b which impels the core 2 in a horizontal direction, according to fastening by the fixing bolt 42.

Abstract: [Problem] Manufacturing work of a coil is simplified and miniaturization of a reactor is achieved by reducing occupied space as much as possible.

Abstract: To reduce a reactor core shape so as to decrease an entire reactor size and to lower a cost while improving DC superimposition of a high current value. In a reactor core (108), cross-sectional area W1a*Ha of two magnetic substance blocks (109a) making up a non-winding portion while no winding is wound are reduced by about 24% to 33% as compared to cross-sectional area Wb*Hb* in the direction orthogonal to magnetic paths of magnetic substance blocks (3b) making up a winding portion.