OVERMOULDED OR CANNED ELECTRICAL MACHINE

摘要

The invention relates to a rotating electrical machine including at least one piece of electrical equipment formed by a canned or overmoulded electric motor or a canned or overmoulded magnetic suspension system. The aforementioned piece of electrical equipment comprises a rotor (102) and a stator (150) including pole pieces (154) and windings (152). The surface of the stator (150) facing the rotor (102) is provided with at least one sleeve (101) or a coating (190) that provides protection against corrosive conditions. The sleeve (101) or the protective coating (190) on the surface of the stator (150) facing the rotor (102) is provided with parts (111) which are recessed in relation to the main surfaces (155) defining the air gap (e), said recessed parts (111) being distributed along the edge of the stator, thereby stimulating the movement of the fluid flowing in the air gap around the rotor (102).