A continuously transposed conductor (CTC) cable may include a plurality of electrically insulated strands arranged in first and second stacks with the plurality of strands successively transposed between the first and second stacks. The plurality of strands may include at least one strand having a plurality of component strands that are arranged in third and fourth stacks with the plurality of component strands successively transposed between the third and fourth stacks. Each of the components strands may include a conductor and insulation formed at least partially around the conductor.

An electric motor can automatically generate an internal pressure around conductor windings of the stator. The electric motor can be used on an electric aircraft or other application having variable atmospheric pressure, The electric motor includes a fan configured to blow the gas into a flow path to generate increased internal pressure about the conductor windings. The fan may be mounted to the rotator of the electric motor, The flow path is restricted to increase the pressure difference of the air entering the electric motor.

An electric motor can automatically generate an internal pressure around conductor windings of the stator. The electric motor can be used on an electric aircraft or other application having variable atmospheric pressure, The electric motor includes a fan configured to blow the gas into a flow path to generate increased internal pressure about the conductor windings. The fan may be mounted to the rotator of the electric motor, The flow path is restricted to increase the pressure difference of the air entering the electric motor.

A tooth-wound coil of a stator or of a stator segment of a dynamo-electric machine having two straight sections spaced apart from each other and running substantially parallel. Two 180? curves are located on the ends thereof, wherein the straight sections have an active part area, the axial extend of which is less than or equal to that of the straight section. The tooth-wound coil has a symmetrical extension plane running in the longitudinal direction. An insulation material is provided around the straight sections of the tooth-wound coil. The material effects groove isolation and/or phase isolation in the stator or stator segment.

A tooth-wound coil of a stator or of a stator segment of a dynamo-electric machine having two straight sections spaced apart from each other and running substantially parallel. Two 180? curves are located on the ends thereof, wherein the straight sections have an active part area, the axial extend of which is less than or equal to that of the straight section. The tooth-wound coil has a symmetrical extension plane running in the longitudinal direction. An insulation material is provided around the straight sections of the tooth-wound coil. The material effects groove isolation and/or phase isolation in the stator or stator segment.

Replaceable windings (101) for an electromagnetic machine (100) are provided. A replaceable winding (101) comprises a body (107) having a longitudinal axis (105), the body (107) comprising opposing surfaces along the longitudinal axis (105). The replaceable winding (101) further comprises an aperture (119) through the body (107), between the opposing surfaces, the aperture (119) having generally parallel internal sides about perpendicular to the opposing surfaces of the body (107), the aperture (119) configured to removably received a pole portion (109) of the electromagnetic machine (100). The replaceable winding (101) further comprises electrical conductors wound about the aperture (119) in the body (107). The replaceable winding (101) further comprises electrical connectors (123) at one or more external sides of the body (107), the electrical connectors (123) connected to the electrical conductors.

An insulated wire includes insulation having organic filler particles distributed throughout a polymer matrix. The filler particles may be a fluoropolymer with a low relative permittivity and a high dielectric strength. This configuration achieves improved PDIV and dielectric characteristics for a given thickness of insulation, as compared to a comparable polymer insulation lacking the filler particles. The resulting wire may be used for high-voltage and severe-duty applications, preserving or improving performance while minimizing insulation thickness for additional spatial efficiency.

Provided is a stator coil, including: a coil conductor; a first insulating layer in which a first mica tape is wound and laminated around an outer periphery of the coil conductor; and a second insulating layer in which a second mica tape is wound and laminated around an outer periphery of the first insulating layer, wherein the first mica tape contains mica in a specific content, wherein 60 mass % or more of the mica contained in the first mica tape passes through a JIS standard sieve having a nominal opening of 250 m, wherein the first mica tape has a specific lamination thickness, and wherein 40 mass % or less of mica contained in the second mica tape passes through the JIS standard sieve having a nominal opening of 250 m.

The present disclosure relates to electrical machines. The teachings thereof may be embodied in insulation systems for electrical machines, more particularly in the high-voltage range, for example, in an insulation system for electrical machines including: an insulator comprising a porous insulating material; an impregnator comprising a catalytically or thermally curable resin material having oxirane functionalities, or a mixture of different reactive resin materials having oxirane functionalities; and at least one thermally activatable or encapsulated hardener material.

The present disclosure relates to electrical machines. The teachings thereof may be embodied in insulation systems for electrical machines, more particularly in the high-voltage range, for example, in an insulation system for electrical machines including: an insulator comprising a porous insulating material; an impregnator comprising a catalytically or thermally curable resin material having oxirane functionalities, or a mixture of different reactive resin materials having oxirane functionalities; and at least one thermally activatable or encapsulated hardener material.