(19)
(11) EP 0 735 555 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
03.09.1997 Bulletin 1997/36

(43) Date of publication A2:
02.10.1996 Bulletin 1996/40

(21) Application number: 96200752.2

(22) Date of filing: 19.03.1996
(51) International Patent Classification (IPC)6: H01H 1/58
(84) Designated Contracting States:
BE CH DE FR GB IT LI

(30) Priority: 30.03.1995 SE 9501138

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

(72) Inventors:
  • Stengärd, Peter
    77143 Ludvika (SE)
  • Akersson, Ulf
    77142 Ludvika (SE)

   


(54) High-voltage circuit breaker


(57) The invention relates to a high-voltage circuit breaker, the main current path of which is made of tubing (17, 18, 22) of a plastically machinable metallic material, preferably copper or a copper alloy. The connection flanges (11, 12) of the circuit breaker are fixed to the respective current-carrying metal tubes by rolling out one end portion of the tubes into a groove (25, 26) in the respective flange (11, 12). The current transfer between the tube and the flange is ensured with the aid of a resilient contact member (27, 28) arranged in the groove.






Search report