(19)

(11)

EP 2 638 554 A1

(12)

(43) Date of publication: 18.09.2013 Bulletin 2013/38 (21) Application number: 10778634.5 (22) Date of filing: 10.11.2010

(51) International Patent Classification (IPC):  H01H 33/662(2006.01) (86) International application number: PCT/EP2010/067231 (87) International publication number: WO 2012/062362 (18.05.2012 Gazette 2012/20)

(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 (71) Applicant: Alstom Technology Ltd. 5400 Baden (CH)	(72) Inventor: PARASHAR, Rama, Shanker Stafford Staffordshire ST17 0AL (GB) (74) Representative: Ilgart, Jean-Christophe et al BREVALEX 95 rue d'Amsterdam 75378 Paris Cedex 8 75378 Paris Cedex 8 (FR)