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(11)

EP 2 095 376 A1

(12)

(43) Date of publication: 02.09.2009 Bulletin 2009/36 (21) Application number: 07852215.8 (22) Date of filing: 05.12.2007

(51) International Patent Classification (IPC):  H01B 9/02(2006.01) H02G 15/064(2006.01) H02G 15/184(2006.01) C08K 3/22(2006.01) C08K 3/00(2006.01) H02G 15/103(2006.01) C08K 3/04(2006.01) (86) International application number: PCT/SE2007/050943 (87) International publication number: WO 2008/076058 (26.06.2008 Gazette 2008/26)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR (30) Priority: 20.12.2006 SE 0602789 (71) Applicant: ABB Research Ltd. 8050 Zürich (CH)	(72) Inventors: JONSSON, Erik 752 58 Uppsala (SE) AULETTA, Tommaso 722 11 Västerås (SE) HILLBORG, Henrik 722 10 Västerås (SE) (74) Representative: Kock, Ina  ABB AB Intellectual Property Ingenjör Bååths Gata 11 721 83 Västerås 721 83 Västerås (SE)