(19)
(11) EP 2 975 732 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 A2)

(48) Corrigendum issued on:
09.03.2016 Bulletin 2016/10

(43) Date of publication:
20.01.2016 Bulletin 2016/03

(21) Application number: 15167041.1

(22) Date of filing: 08.05.2015
(51) International Patent Classification (IPC): 
H02K 3/12(2006.01)
 H02K 15/00(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
MA

(30) Priority: 08.07.2014 US 201414325866

(71) Applicant: Hamilton Sundstrand Corporation
Charlotte, NC 28217 (US)

(72) Inventors:
  • TANGUDU, Jagadeessh
    South Windsor, CT 06074 (US)
  • VERONESI, William A.
    Hartford, CT 06114 (US)
  • JAGDAL, Vijay
    Manchester, CT 06042 (US)
  • LYNCH, Matthew E.
    Canor, CT 06109 (US)
  • KUCZEK, Andrzej Ernest
    Bristol, CT 06010 (US)
  • EL-WARDANY, Tahany Ibrahim
    Bloomfield, CT 06002 (US)
  • SCHMIDT, Wayde R.
    Pomfret Center, CT 06259 (US)
  • FRAME, Dustin
    Edmonds, WA 98020 (US)
  • HOLOWCZAK, John E.
    South Windsor, CT 06108 (US)

(74) Representative: Hull, James Edward 
Dehns St. Bride's House 10 Salisbury Square
London EC4Y 8JD
London EC4Y 8JD (GB)

   


(54) STRAND LAYOUT FOR REDUCED AC WINDING LOSS


(57) A component to generate a magnetic field and a method of designing windings, comprised of a plurality of strands, within each slot of the component, are described. The component includes a plurality of slots. The component also includes sets of a plurality of strands that form windings, each set of the plurality of strands being enclosed in a respective one of the plurality of slots, each set of the plurality of strands being divided into a plurality of a collection of strands configured to be twisted over a portion of a length of the respective one of the plurality of slots. Each of the collection of strands changes cross sectional shape over the portion.