(19)

(11)

EP 1 872 451 A1

(12)

(43) Date of publication: 02.01.2008 Bulletin 2008/01 (21) Application number: 06725627.1 (22) Date of filing: 06.04.2006

(51) International Patent Classification (IPC):  H02G 5/06(2006.01) (86) International application number: PCT/EP2006/061414 (87) International publication number: WO 2006/111479 (26.10.2006 Gazette 2006/43)

(84) Designated Contracting States: CH DE FR IT LI SE (30) Priority: 19.04.2005 EP 05103139 (71) Applicant: VA TECH Transmission & Distribution SA 38000 Grenoble (FR)	(72) Inventors: HARSCOET, Fabrice F-38330 Montbonnot (FR) DIAFERIA, Cataldo F-38340 Voreppe (FR) (74) Representative: Berg, Peter  Siemens AG CT IP L&T Postfach 22 16 34 80506 München 80506 München (DE)