(19)

(11)

EP 1 023 761 A1

(12)

(43) Date of publication: 02.08.2000 Bulletin 2000/31 (21) Application number: 98950561.5 (22) Date of filing: 12.10.1998

(51) International Patent Classification (IPC)7: H02K 15/02 (86) International application number: PCT/SE9801/834 (87) International publication number: WO 9919/970 (22.04.1999 Gazette 1999/16)

(84) Designated Contracting States: CH DE ES FR GB LI (30) Priority: 13.10.1997 SE 9703720 (71) Applicant: ABB AB 721 83 Västeras (SE)	(72) Inventor: BACKLUND, Alberti S-734 37 Hallstahammar (SE) (74) Representative: Johansson Webjörn, Ingmari  L.A. Groth & Co KB Patentbyra,P.O. Box 6107 102 32 Stockholm 102 32 Stockholm (SE)