Stator core end magnetic shield for large a.c. machines

Details Stator core end magnetic shield for large a.c. machines Stator core end magnetic shield for large a.c. machines

H - Electricity

02

K

310/108

H02K 3/46 (2006.01) H02K 3/42 (2006.01) H02K 3/50 (2006.01)

Patent

CA 1080296

ABSTRACT OF THE DISCLOSURE A magnetic shield which is provided to reduce stator core end heating in A.C. machine may also serve as a support structure for the end-turns of the stator windings. The shield is formed of small-diameter iron wire circumferentially wound in a matrix of epoxy-impregnated glass fibre material. The iron wire provides a low magnetic reluctance path in the circumferential direction at the core end. The higher reluctance path provided by the shield in the axial direction reduces the axial magnetic flux penetrating the core end.

272275

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