Reduction of the electrical resistance for an electric machine having windings arranged in grooves

摘要: The invention relates to an electric machine having grooves and windings of electrical conductors, wherein the are divided into strands, at least one strand has a respective number s coils (1) connected in series, which each arranged grooves, comprise sub-conductors (2) parallel, coil plurality bundles (3), bundle (3) is series groove position relation deepest possible groove, positions all define b strand. In order reduce resistance for that can be operated with alternating current, interchanged between such way n times most n' integer quotient regard strand, n'=n if divisible by n'=n+1 not b.