Two- or multiphase transformer

Details Two- or multiphase transformer Two- or multiphase transformer

H - Electricity

01

F

H01F 27/30 (2006.01)

Patent

CA 2716147

The invention relates to a two-or multiphase transformer having a yoke which has a crosspiece and at least two limbs, over which limbs a coil (17) is placed in each case, and having at least one carrier on which the crosspiece is fixed and which has bearing faces (14) for the coils. At least two supporting blocks (15, 16) for each coil are mounted on each bearing surface (14), said supporting blocks being fitted with elastic compensation elements (35) on the coil-side carrying face (19) and having, on their longitudinal side faces (25, 26) which run perpendicular to the carrying surface (19), at least one strip (27, 28) which extends the creepage path and runs in the longitudinal direction and parallel to the carrying face of the supporting block.

L'invention concerne un transformateur biphasé ou polyphasé comprenant une armature qui présente une âme et au moins deux branches, branches sur lesquelles est à chaque fois posée une bobine (17), et comprenant au moins un support auquel est fixée l'âme et qui présente des surfaces d'appui (14) pour les bobines. Sur chaque surface d'appui (14) reposent au moins deux blocs d'appui (15, 16) pour chaque bobine, lesquels sont munis d'éléments de compensation souples (35) sur la surface porteuse (19) côté bobine et présentent sur leurs surfaces latérales longues (25, 26) qui s'étendent perpendiculairement à la surface porteuse (19) au moins une baguette (27, 28) qui prolonge la ligne de fuite, laquelle s'étend dans le sens longitudinal et parallèlement à la surface porteuse du bloc d'appui.

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