HIGH SLIP VARIABLE FREQUENCY INDUCTION MOTOR Russian patent published in 2018 - IPC H02K17/16 H02K17/30 H02K3/32 H02K15/02 F04B17/03 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering, in particular to high slip variable frequency induction motors. Submersible high slip variable frequency induction motor for use in a fuel pump comprises a rotor immersed in fuel when used, including an elongate stacked lamination core, plurality of electrically conducting rotor bars extending through said core, each having a first end and a second end, and electrically conducting first and second end rings electrically connected to the first and second ends respectively of said rotor bars. Plurality of electrically conducting rotor bars has a resistivity of greater than 5x10^-8 Ωm. Insulating material is disposed between said rotor bars and said core thereby to at least reduce or prevent parasitic current flow between the rotor bars and said core.

EFFECT: reduced losses.

15 cl, 2 dwg