(19)
(11) EP 3 369 150 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
05.01.2022 Bulletin 2022/01

(45) Mention of the grant of the patent:
01.12.2021 Bulletin 2021/48

(21) Application number: 16784573.4

(22) Date of filing: 05.10.2016
(51) International Patent Classification (IPC): 
H02H 7/26(2006.01)
G01R 31/08(2020.01)
 H02H 3/44(2006.01)
H02H 3/08(2006.01)
(52) Cooperative Patent Classification (CPC):
H02H 7/263; H02H 3/08; G01R 31/085
(86) International application number:
PCT/IB2016/055939
(87) International publication number:
WO 2017/072612 (04.05.2017 Gazette 2017/18)

(54)

METHOD AND SYSTEM FOR PROTECTION IN A MIXED LINE

VERFAHREN UND SYSTEM ZUM SCHUTZ IN EINER GEMISCHTEN LEITUNG

PROCÉDÉ ET SYSTÈME DE PROTECTION DANS UNE LIGNE MÉLANGÉE

(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

(30) Priority: 30.10.2015 IN 5863CH2015

(43) Date of publication of application:
05.09.2018 Bulletin 2018/36

(73) Proprietor: Hitachi Energy Switzerland AG
5400 Baden (CH)

(72) Inventors:
  • NAIDU, Obbalareddi Demudu
    Bangalore 560037 (IN)
  • KARIWALA, Vinay
    Howrah 711101 (IN)

(74) Representative: Vossius & Partner Patentanwälte Rechtsanwälte mbB 
P.O. Box 86 07 67
81634 München
81634 München (DE)


(56) References cited: : 
EP-A2- 1 020 729
 US-A1- 2012 068 717
   
  • GUSTAVO D FERREIRA ET AL: "Impedance-based fault location for overhead and underground distribution systems", NORTH AMERICAN POWER SYMPOSIUM (NAPS), 2012, IEEE, 9 September 2012 (2012-09-09), pages 1-6, XP032257337, DOI: 10.1109/NAPS.2012.6336391 ISBN: 978-1-4673-2306-2
   
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).