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(11)

EP 4 798 958 A1

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(43) Date of publication: 02.09.2026 Bulletin 2026/36 (21) Application number: 24794164.4 (22) Date of filing: 24.10.2024

(51) International Patent Classification (IPC):  G01N 24/08(2006.01) G01R 33/30(2006.01) G01N 33/26(2006.01) (52) Cooperative Patent Classification (CPC): G01N 24/08; G01R 33/307; G01N 33/28 (86) International application number: PCT/EP2024/080063 (87) International publication number: WO 2025/088033 (01.05.2025 Gazette 2025/18)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 27.10.2023 EP 23206423 (71) Applicant: Hitachi Energy Ltd 8050 Zürich (CH)	(72) Inventors: CHEIM, Luiz Raleigh, North Carolina 27603 (US) SBRAVATI, Alan Raleigh, North Carolina 27610 (US) (74) Representative: Epping - Hermann - Fischer  Patentanwaltsgesellschaft mbH Schloßschmidstraße 5 80639 München 80639 München (DE)