STATOR WINDING FOR 20/16 POLES Russian patent published in 2004 - IPC

FIELD: electrical engineering, multispeed asynchronous motors of 20 and 16 poles in stator carrying 36 slots.

SUBSTANCE: winding includes 12 pairs of axially matched, differently pitched single- and double-layer coils with outside double-layer coils. In each pair finishes of double-layer and single-layers coils are joined, start of single-layer coil of pair (4i-3) is connected to start of double-layer coil of pair (4i+3), start of single-layer coil (4i+3) is connected to start of single-layer pair (4i+6), start of double-layer coil of pair (4i+6) is connected to start of single-layer coil of pair (4j+3). Leads-out are taken from integrated starts of double-layer coils 1 and 12 of pairs, from integrated starts of double-layer coils of 4-th and 5-th pairs, from integrated starts of double-layer coils of 8-th and 9-th pairs, from starts of single-layer coils (4i+3) of pairs (i = 1, 2, 3; out of numbers 1 over 12 is subtracted ).

EFFECT: obtainment of high winding factor with both numbers of poles of winding.

3 dwg