Patent ID: 9613769
Date: 2017-04-04
CPC Classifications: H01H

Claim:
1. A vacuum interrupter for a circuit breaker arrangement comprising: a cylindrically shaped insulating part, within which a pair of electrical contact parts are coaxially arranged and surrounded concentrically by the insulating part, wherein the electrical contact parts include means for initiating a disconnection arc only between corresponding inner electrical contact elements after starting a disconnection process, and corresponding outer electrical contact elements include means for commutating said arc from the inner electrical contact elements to the outer electrical contact elements until the disconnection process is completed, wherein each inner electrical contact element is designed for generating a transverse magnetic field, and each outer electrical contact element is designed for generating an axial magnetic field, wherein each outer electrical contact element includes an electrical coil for generating the axial magnetic field, and each inner electrical contact element has one of a disk, star or spiral shaped form for supporting or generating the transverse magnetic field, wherein for a double-contact system on both corresponding electrical contact parts the inner electrical contact element is immovably arranged in relation to the outer electrical contact element, and one of the electrical contact parts is movable in relation to the other electrical contact part for a switching function; wherein each inner electrical contact element is coaxially arranged within a corresponding outer electrical contact element, which has a pot-shaped or a tube-shaped geometrical form, and an insulation gap is established between each inner and each outer electrical contact elements, wherein each inner electrical contact element and each outer electrical contact element are integrated to form the electrical contact element, wherein each insulation gap is formed only between adjacent lateral edges of each inner and each outer electrical contact elements.