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EP 3 956 914 A1

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(43) Date of publication: 23.02.2022 Bulletin 2022/08 (21) Application number: 20728005.8 (22) Date of filing: 22.05.2020

(51) International Patent Classification (IPC):  H01H 3/58(2006.01) H01H 33/42(2006.01) H01H 31/00(2006.01) H01H 9/26(2006.01) (52) Cooperative Patent Classification (CPC): H01H 31/003; H01H 3/58; H01H 33/42; H01H 2009/265 (86) International application number: PCT/EP2020/064301 (87) International publication number: WO 2020/234463 (26.11.2020 Gazette 2020/48)

(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: KH MA MD TN (30) Priority: 22.05.2019 CN 201920745988 U (71) Applicant: Siemens Energy Global GmbH & Co. KG 81739 München (DE)	(72) Inventors: WANG, Feng Zhi F05.003 Beijing, Beijing 100102 (CN) LIAO, Sheng Min Shanghai 201600 (CN) MENG, Guo Zhu Beijing 100102 (CN) (74) Representative: Isarpatent  Patent- und Rechtsanwälte Barth Charles Hassa Peckmann & Partner mbB Friedrichstrasse 31 80801 München 80801 München (DE)