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EP 3 326 189 A1

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(43) Date of publication: 30.05.2018 Bulletin 2018/22 (21) Application number: 16738789.3 (22) Date of filing: 14.07.2016

(51) International Patent Classification (IPC):  H01H 31/10(2006.01) (86) International application number: PCT/EP2016/066743 (87) International publication number: WO 2017/012971 (26.01.2017 Gazette 2017/04)

(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 MD (30) Priority: 17.07.2015 CN 201510424930 (71) Applicant: Siemens Aktiengesellschaft 80333 München (DE)	(72) Inventors: CHEN, Yan Ping Shanghai 200245 (CN) LIU, Bin Shanghai 200245 (CN) PENG, Jun Cai Shanghai 200240 (CN) SHAO, Yong Yu 110020 (CN) ZHANG, Juan Shanghai 201600 (CN) BIRKHOLZ, Martin 14053 Berlin (DE) GUENTHER, Rene 14612 Falkensee (DE) (74) Representative: Patentanwaltskanzlei WILHELM & BECK  Prinzenstraße 13 80639 München 80639 München (DE)