(19)

(11)

EP 2 415 133 A1

(12)

(43) Date of publication: 08.02.2012 Bulletin 2012/06 (21) Application number: 09842465.8 (22) Date of filing: 03.04.2009

(51) International Patent Classification (IPC):  H02B 13/035(2006.01) H01H 33/66(2006.01) H02B 1/20(2006.01) (86) International application number: PCT/CN2009/000367 (87) International publication number: WO 2010/111808 (07.10.2010 Gazette 2010/40)

(84) Designated Contracting States: 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 SE SI SK TR (71) Applicant: ABB Technology Ltd 8050 Zürich (CH)	(72) Inventors: XIE, Jianbo Beijing 100061 (CN) DENG, Xianbo Beijing 100023 (CN) SONSTEBY, Gunn-Kristin N-3913 Porsgrunn (NO) (74) Representative: Leidescher, Thomas  Zimmermann & Partner Josephspitalstraße 15 DE-80331 München DE-80331 München (DE)