METHOD FOR ON-LINE DETECTION OF RESISTANCE-TO-GROUND FAULTS IN ACTIVE MAGNETIC BEARING SYSTEMS

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EP 2 659 277 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:
	23.05.2018 Bulletin 2018/21

(45)	Mention of the grant of the patent:
	11.04.2018 Bulletin 2018/15

(21)	Application number: 11875261.7

(22)	Date of filing: 21.12.2011

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International Patent Classification (IPC):

G01R 27/20^(2006.01)
H02K 7/09^(2006.01)
G01M 13/04^(2006.01)
G01R 31/34^(2006.01)

F16C 32/04^(2006.01)
G01R 31/02^(2006.01)
F16C 37/00^(2006.01)

(86)	International application number:
	PCT/US2011/066460

(87)	International publication number:
	WO 2013/109235 (25.07.2013 Gazette 2013/30)

(54)	METHOD FOR ON-LINE DETECTION OF RESISTANCE-TO-GROUND FAULTS IN ACTIVE MAGNETIC BEARING SYSTEMS VERFAHREN ZUR ONLINE-ERKENNUNG VON BODENWIDERSTANDSFEHLERN IN AKTIVEN MAGNETLAGERSYSTEMEN PROCÉDÉ DE DÉTECTION EN LIGNE DE DÉFAUTS DE RÉSISTANCE À LA MASSE DANS DES SYSTÈMES DE PALIER MAGNÉTIQUE ACTIF

(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

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Priority:

30.12.2010 US 201061428429 P

(43)	Date of publication of application:
	06.11.2013 Bulletin 2013/45

(73)	Proprietor: Dresser-Rand Company
	Olean, NY 14760 (US)

(72)	Inventors:
	GILARRANZ, Jose L. Katy, Texas 77494 (US) GRIFFIN, Timothy R. Allegany, New York 14706 (US)

(74)	Representative: Haseltine Lake LLP
	Lincoln House, 5th Floor 300 High Holborn London WC1V 7JH London WC1V 7JH (GB)

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References cited: :

EP-A1- 1 491 907
JP-A- 2000 065 056
US-A- 6 087 836
US-A1- 2010 013 332
US-B2- 6 373 156

WO-A2-2008/084157
KR-A- 20100 120 331
US-A1- 2003 001 447
US-B1- 6 465 924

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).