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EP 4 222 762 A1

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(43) Date of publication: 09.08.2023 Bulletin 2023/32 (21) Application number: 20803402.5 (22) Date of filing: 20.10.2020

(51) International Patent Classification (IPC):  H01F 37/00(2006.01) H01F 27/06(2006.01) H01F 27/30(2006.01) H01F 27/00(2006.01) H01F 27/08(2006.01) (52) Cooperative Patent Classification (CPC): H01F 37/005; H01F 27/002; H01F 27/085; H01F 27/06; H01F 27/303 (86) International application number: PCT/US2020/056479 (87) International publication number: WO 2022/086505 (28.04.2022 Gazette 2022/17)

(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 (71) Applicant: Siemens Energy Global GmbH & Co. KG 81739 München (DE)	(72) Inventor: KHAN, Kamran Toronto, Ontario M1P 3T5 (CA) (74) Representative: Horn Kleimann Waitzhofer Patentanwälte PartG mbB  Ganghoferstraße 29a 80339 München 80339 München (DE)