Rotary transformer and rotating machine comprising such a rotary transformer

摘要

The invention relates to a three-phase rotary transformer (202) comprising a first, a second and a third primary coil (211, 212, 213) associated with a first, a second and a third secondary coil (221, 222, 223), respectively. The second primary (212) and secondary (222) coils each comprising a first and a second sub-coil (212A, 212B, 222A, 222B). Each of the first and third coils (211, 213, 221, 223) being housed with a respective sub-coil (212A, 212B, 222A, 222B) of the second coil (212, 222) in respectively a first and a second housing ( 231A, 231B, 232A, 232B, 241A, 241B, 242A, 242B) of a notch (231, 232, 241, 242) of a magnetic body (230, 240). For each notch (231, 232, 241, 242), the housing (231A, 232A, 241A, 242A) corresponding to a sub-coil (212A, 212B, 222A, 222B) has an axial dimension (LA) greater than one dimension axial (LB) of the housing (231B, 232B, 241B, 242B) corresponding to the corresponding coil (211, 213, 221, 223). Figure for the abstract: figure 3