Electrical contact arrangement and air insulated medium voltage circuit breaker including the electrical contact arrangement

摘要

An electrical contact arrangement for medium to high voltage applications includes a contact arm having a distal end section on which a circular shaped annulus arrangement having several axially and parallel directed contact fingers is arranged. The contact fingers are pressed on the contact arm via respective radially directed connection sections by a spring ring which is peripherally arranged around the contact fingers. The distal end section of the contact arm includes a first ring-shaped surface and an adjacent second ring-shaped surface, so that the connection section of each contact finger is pressed to at least both the first and second ring-shaped surfaces.

主权项

1. An electrical contact arrangement for medium to high voltage applications, the electrical contact arrangement comprising:
a contact arm having a distal end section; a circular shaped annulus arrangement arranged on the distal end section of the contact arm, the annulus arrangement including a plurality of axially and parallel directed contact fingers; and a plurality of radially directed connection sections arranged to press a corresponding one of the plurality of contact fingers on the contact arm by a first spring ring which is peripherally arranged around the contact fingers, wherein the distal end section of the contact arm includes a first ring-shaped surface and an adjacent second ring-shaped surface, wherein the corresponding connection section of each contact finger is respectively pressed to both the first and second ring-shaped surfaces, and wherein the first ring-shaped surface and the second ring-shaped surface form a V-shaped groove on the distal end section of the contact arm.