(19)
(11) EP 0 950 276 A1

(12)

(43) Date of publication:
20.10.1999 Bulletin 1999/42

(21) Application number: 97924463.0

(22) Date of filing: 27.05.1997
(51) International Patent Classification (IPC): 
H02H 3/ 08( . )
H01F 3/ 14( . )
H01F 27/ 32( . )
H01F 29/ 14( . )
H02H 7/ 00( . )
H02H 9/ 04( . )
 H01F 3/ 10( . )
H01F 27/ 28( . )
H01F 27/ 34( . )
H02H 3/ 02( . )
H02H 9/ 02( . )
H02H 9/ 06( . )
(86) International application number:
PCT/SE1997/000881
(87) International publication number:
WO 1998/027635 (25.06.1998 Gazette 1998/25)
(84) Designated Contracting States:
AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE

(30) Priority: 17.12.1996 SE 19960004630
03.02.1997 SE 19970000335

(71) Applicant: ASEA BROWN BOVERI AB
721 78 Västeras (SE)

(72) Inventors:
  • BERNHOFF, Hans
    S-720 02 Västeras (SE)
  • BERGKVIST, Mikael
    S-756 45 Uppsala (SE)
  • EKBERG, Mats
    S-722 42 Västeras (SE)
  • ISBERG, Jan
    S-722 14 Västeras (SE)
  • LEIJON, Mats
    S-723 35 Västeras (SE)
  • MING, Li
    S-723 41 Västeras (SE)
  • SUNESSON, Anders
    S-232 51 Akarp (SE)
  • WINDMAR, Dan
    S-744 95 Vittinge (SE)

(74) Representative: Bjerkén, Jarl Hakan, et al 
Bjerkéns Patentbyra KB P.O.Box 1274
801 37 Gävle
801 37 Gävle (SE)

   


(54) DEVICE AND METHOD RELATING TO PROTECTION OF AN OBJECT AGAINST OVER-CURRENTS COMPRISING OVER-CURRENT REDUCTION AND CURRENT LIMITATION