US 11,915,888 B2
Hybrid current path for circuit breakers
Tomas Roininen, Saxdalen (SE); Benny Wedin, Grängesberg (SE); Lars Jeppsson, Kopparberg (SE); Kent Kirjonen, Grängesberg (SE); and Leif Persson, Grängesberg (SE)
Assigned to HITACHI ENERGY LTD, Zurich (CH)
Appl. No. 18/013,825
Filed by HITACHI ENERGY LTD, Zürich (CH)
PCT Filed Jun. 29, 2021, PCT No. PCT/EP2021/067809
§ 371(c)(1), (2) Date Dec. 29, 2022,
PCT Pub. No. WO2022/002912, PCT Pub. Date Jan. 6, 2022.
Claims priority of application No. 20183167 (EP), filed on Jun. 30, 2020.
Prior Publication US 2023/0197363 A1, Jun. 22, 2023
Int. Cl. H01H 1/38 (2006.01)
CPC H01H 1/385 (2013.01) 20 Claims
OG exemplary drawing
 
1. A conductor arrangement for a circuit breaker interrupter, the conductor arrangement comprising:
a tubular body conductor comprising a first metal material; and
a contact conductor comprising a second metal material, the contact conductor being at least partly tubular,
a tubular end portion of the tubular body conductor being mechanically and electrically joined with a tubular end portion of the contact conductor in a circumferential overlap region formed by longitudinally press-fitting one of the tubular body conductor and the contact conductor into the other one of the tubular body conductor and the contact conductor, an outer one of the tubular end portion of the tubular body conductor and the tubular end portion of the contact conductor at the overlap region including copper and an inner one of the tubular end portion of the tubular body conductor and the tubular end portion of the contact conductor at the overlap region including aluminum.