An electric machine comprises a rotor assembly and a stator assembly
adjacent the rotor assembly. The stator assembly includes windings
disposed around a plurality of teeth, with each phase of the winding
including at least one pair of coils wrapped in opposite directions
around adjacent teeth to induce mutual inductance between the coils when
electrical current flows through the phase of the winding. The coils of
different phases are arranged to cancel magnetic coupling between the
different phases. The winding arrangement provides a way to accomplish
multiple, redundant, magnetically and electrically isolated windings with
current limiting means in a single stator of an electric machine. The
winding arrangements inherently provide an increase in mutual inductance
and, therefore, an increase in impedance over that possible with prior
art winding arrangements to limit the maximum short circuit current in
the windings.