SUBMERSIBLE ELECTRIC MOTOR Russian patent published in 2001 - IPC

FIELD: electrical and electromechanical engineering; single-phase capacitor motors. SUBSTANCE: motor that may be used for driving submersible pumps has phase-shifting capacitor in the form of hollow cylinder mounted on end portions of motor stator winding; outer diameter of capacitor is smaller than or equal to that of stator core. Motor incorporates provision for eliminating inevitable voids between stator frame and end portions of stator winding, for simplifying design of base members, and for dispensing with third core in power cable and with special earth-mounted box for holding phase-shifting capacitor. EFFECT: simplified design, reduced cost and power requirement. 1 dwg