(19)
(11) EP 1 740 964 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:
23.03.2016 Bulletin 2016/12

(45) Mention of the grant of the patent:
03.02.2016 Bulletin 2016/05

(21) Application number: 05717888.1

(22) Date of filing: 03.03.2005
(51) International Patent Classification (IPC): 
G01R 31/06(2006.01)
G01R 31/28(2006.01)
 G01R 31/02(2006.01)
(86) International application number:
PCT/GB2005/000810
(87) International publication number:
WO 2005/085885 (15.09.2005 Gazette 2005/37)

(54)

METHOD AND APPARATUS FOR CHARACTERISING A THREE PHASE TRANSFORMER USING A SINGLE PHASE POWER SUPPLY

VERFAHREN UND VORRICHTUNG ZUR CHARAKTERISIERUNG EINES DREIPHASIGEN WANDLERS DURCH EINE EINPHASIGE STROMVERSORGUNG

PROCEDE ET APPAREIL PERMETTANT DE CARACTERISER UN TRANSFORMATEUR TRIPHASE AU MOYEN D'UNE ALIMENTATION MONOPHASEE

(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

(30) Priority: 04.03.2004 GB 0404918

(43) Date of publication of application:
10.01.2007 Bulletin 2007/02

(73) Proprietor: Hubbell Limited
London EC1A 4DD (GB)

(72) Inventor:
  • FAWCETT, Timothy James
    Yoxall, East Staffs DE13 8NQ (GB)

(74) Representative: Wilson Gunn 
Blackfriars House The Parsonage 5th Floor
Manchester M3 2JA
Manchester M3 2JA (GB)


(56) References cited: : 
WO-A-03/054561
US-A- 5 276 402
 US-A- 4 241 306
US-A1- 2003 139 891
   
  • AVO INTERNATIONAL: "Transformer Turns Ratio Test Set"[Online] vol. 8/99, 1999, XP002330453 Retrieved from the Internet: URL:http://www.megger.com/common/documents /FB_FB_Y550503_DS_En_V01.pdf> [retrieved on 2005-06-02]
  • THE INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, INC.: "IEEE STD C57.12.90-1999 - IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers"[Online] 30 December 1999 (1999-12-30), XP002330454 ISBN: 0-7381-1789-7 Retrieved from the Internet: URL:http://ieeexplore.ieee.org/iel5/6608/1 7647/00815307.pdf?isnumber=17647&prod=STD& arnumber=815307&arSt=&ared=&arAuthor=> [retrieved on 2005-06-02]
   
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).