ALTERNATING CURRENT ELECTRIC MACHINE WINDING Russian patent published in 2020 - IPC H02K3/28 

FIELD: electrical engineering.

SUBSTANCE: invention is related to the field of electric engineering, namely to device of double-phase windings of electric alternating current machines. Double-phase (m = 2) four-zone (N = 4) per phase winding with a number of pairs of poles p₀ is performed in monolayer chain Z grooves, in which the left-hand coils arranged in the odd grooves, and right hand coils arranged in the even grooves. Number of series-connected coils q_k within each phase zone τφ is reduced: q_k=q_p/2 and q_p=Z/(Nmp₀), τ_p=Z/(Np₀), where q_p is number of slots per phase and phase zone is equal to whole number of natural row. Winding is performed with step: y_cp=τ_p±k₁, where k₁ equals a whole number from natural row 1, 2…τ_p - 1.

EFFECT: improved operational characteristics, wider field of application.

9 cl, 8 dwg, 21 tbl